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Finding the Fourth Proportional to 481,255.70, 721,883.55 and 439,265.30

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Solution

The fourth proportional to 481,255.70, 721,883.55 and 439,265.30 is: 658,897.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,255.70 : 721,883.55 = 439,265.30 : x
  2. Step 2: Convert to fraction form
    481,255.70/721,883.55 = 439,265.30/x
  3. Step 3: Cross multiply
    481,255.70x = 721,883.55 × 439,265.30
  4. Step 4: Simplify right side
    481,255.70x = 317,098,394,155.82
  5. Step 5: Solve for x
    x = 317,098,394,155.82/481,255.70
  6. Step 6: Final answer
    x = 658,897.95

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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.