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Finding the Fourth Proportional to 625,124.69, 862,672.47 and 338,645.91

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Solution

The fourth proportional to 625,124.69, 862,672.47 and 338,645.91 is: 467,331.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,124.69 : 862,672.47 = 338,645.91 : x
  2. Step 2: Convert to fraction form
    625,124.69/862,672.47 = 338,645.91/x
  3. Step 3: Cross multiply
    625,124.69x = 862,672.47 × 338,645.91
  4. Step 4: Simplify right side
    625,124.69x = 292,140,503,635.10
  5. Step 5: Solve for x
    x = 292,140,503,635.10/625,124.69
  6. Step 6: Final answer
    x = 467,331.57

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.