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Finding the Fourth Proportional to 636,406.52, 878,233.86 and 473,790.11

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Solution

The fourth proportional to 636,406.52, 878,233.86 and 473,790.11 is: 653,825.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,406.52 : 878,233.86 = 473,790.11 : x
  2. Step 2: Convert to fraction form
    636,406.52/878,233.86 = 473,790.11/x
  3. Step 3: Cross multiply
    636,406.52x = 878,233.86 × 473,790.11
  4. Step 4: Simplify right side
    636,406.52x = 416,098,512,743.96
  5. Step 5: Solve for x
    x = 416,098,512,743.96/636,406.52
  6. Step 6: Final answer
    x = 653,825.04

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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.