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Finding the Fourth Proportional to 498,468.60, 747,702.90 and 443,356.20

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Solution

The fourth proportional to 498,468.60, 747,702.90 and 443,356.20 is: 665,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,468.60 : 747,702.90 = 443,356.20 : x
  2. Step 2: Convert to fraction form
    498,468.60/747,702.90 = 443,356.20/x
  3. Step 3: Cross multiply
    498,468.60x = 747,702.90 × 443,356.20
  4. Step 4: Simplify right side
    498,468.60x = 331,498,716,472.98
  5. Step 5: Solve for x
    x = 331,498,716,472.98/498,468.60
  6. Step 6: Final answer
    x = 665,034.30

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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.