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Finding the Fourth Proportional to 485,759.62, 727,123.14 and 357,820.13

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Solution

The fourth proportional to 485,759.62, 727,123.14 and 357,820.13 is: 535,613.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,759.62 : 727,123.14 = 357,820.13 : x
  2. Step 2: Convert to fraction form
    485,759.62/727,123.14 = 357,820.13/x
  3. Step 3: Cross multiply
    485,759.62x = 727,123.14 × 357,820.13
  4. Step 4: Simplify right side
    485,759.62x = 260,179,294,691.71
  5. Step 5: Solve for x
    x = 260,179,294,691.71/485,759.62
  6. Step 6: Final answer
    x = 535,613.27

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1.5x scale

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.