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Finding the Fourth Proportional to 572,726.60, 859,089.90 and 479,414.60

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Solution

The fourth proportional to 572,726.60, 859,089.90 and 479,414.60 is: 719,121.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,726.60 : 859,089.90 = 479,414.60 : x
  2. Step 2: Convert to fraction form
    572,726.60/859,089.90 = 479,414.60/x
  3. Step 3: Cross multiply
    572,726.60x = 859,089.90 × 479,414.60
  4. Step 4: Simplify right side
    572,726.60x = 411,860,240,772.54
  5. Step 5: Solve for x
    x = 411,860,240,772.54/572,726.60
  6. Step 6: Final answer
    x = 719,121.90

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Similar ratio
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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.