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Finding the Fourth Proportional to 695,692.80, 960,076.80 and 440,985.60

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Solution

The fourth proportional to 695,692.80, 960,076.80 and 440,985.60 is: 608,573.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,692.80 : 960,076.80 = 440,985.60 : x
  2. Step 2: Convert to fraction form
    695,692.80/960,076.80 = 440,985.60/x
  3. Step 3: Cross multiply
    695,692.80x = 960,076.80 × 440,985.60
  4. Step 4: Simplify right side
    695,692.80x = 423,380,043,694.08
  5. Step 5: Solve for x
    x = 423,380,043,694.08/695,692.80
  6. Step 6: Final answer
    x = 608,573.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.