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Finding the Fourth Proportional to 472,564.80, 708,847.20 and 398,753.55

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Solution

The fourth proportional to 472,564.80, 708,847.20 and 398,753.55 is: 598,130.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,564.80 : 708,847.20 = 398,753.55 : x
  2. Step 2: Convert to fraction form
    472,564.80/708,847.20 = 398,753.55/x
  3. Step 3: Cross multiply
    472,564.80x = 708,847.20 × 398,753.55
  4. Step 4: Simplify right side
    472,564.80x = 282,655,337,407.56
  5. Step 5: Solve for x
    x = 282,655,337,407.56/472,564.80
  6. Step 6: Final answer
    x = 598,130.33

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.