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Finding the Fourth Proportional to 498,475.60, 747,713.40 and 443,363.20

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Solution

The fourth proportional to 498,475.60, 747,713.40 and 443,363.20 is: 665,044.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,475.60 : 747,713.40 = 443,363.20 : x
  2. Step 2: Convert to fraction form
    498,475.60/747,713.40 = 443,363.20/x
  3. Step 3: Cross multiply
    498,475.60x = 747,713.40 × 443,363.20
  4. Step 4: Simplify right side
    498,475.60x = 331,508,605,706.88
  5. Step 5: Solve for x
    x = 331,508,605,706.88/498,475.60
  6. Step 6: Final answer
    x = 665,044.80

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Similar ratio
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1.5x scale

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.