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Finding the Fourth Proportional to 529,177.62, 730,270.31 and 287,462.15

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Solution

The fourth proportional to 529,177.62, 730,270.31 and 287,462.15 is: 396,700.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,177.62 : 730,270.31 = 287,462.15 : x
  2. Step 2: Convert to fraction form
    529,177.62/730,270.31 = 287,462.15/x
  3. Step 3: Cross multiply
    529,177.62x = 730,270.31 × 287,462.15
  4. Step 4: Simplify right side
    529,177.62x = 209,925,068,305.10
  5. Step 5: Solve for x
    x = 209,925,068,305.10/529,177.62
  6. Step 6: Final answer
    x = 396,700.58

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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.