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Finding the Fourth Proportional to 486,159.31, 730,836.16 and 451,044.90

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Solution

The fourth proportional to 486,159.31, 730,836.16 and 451,044.90 is: 678,049.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,159.31 : 730,836.16 = 451,044.90 : x
  2. Step 2: Convert to fraction form
    486,159.31/730,836.16 = 451,044.90/x
  3. Step 3: Cross multiply
    486,159.31x = 730,836.16 × 451,044.90
  4. Step 4: Simplify right side
    486,159.31x = 329,639,921,575.97
  5. Step 5: Solve for x
    x = 329,639,921,575.97/486,159.31
  6. Step 6: Final answer
    x = 678,049.18

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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.