Is the House of Representatives to small?

1. For the first 13 decades the house was an ever expanding institution
2. 65 members in 1789
3. In 1911 Districts had 200,000 people
4. Today DIstricts have 640,000 people
5. To be a fair house 669 should be representing America instead of 435

Questions:
1. Can America afford to pay salaries for all representatives due to knew budget cuts?
2. Is this a serious issue?
3. Is America fairly represented?
4. Would Senate increase as well?
5. Why not just have direct democracy to solve this issue?

I think there should be more Congressmen once America gets back on its feet. The economy should be considered before anything without money we can do nothing. More representatives would be nice to have a more diverse congress that would convey more views of the people.