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Finding the Fourth Proportional to 498,444.60, 747,666.90 and 443,332.20

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Solution

The fourth proportional to 498,444.60, 747,666.90 and 443,332.20 is: 664,998.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,444.60 : 747,666.90 = 443,332.20 : x
  2. Step 2: Convert to fraction form
    498,444.60/747,666.90 = 443,332.20/x
  3. Step 3: Cross multiply
    498,444.60x = 747,666.90 × 443,332.20
  4. Step 4: Simplify right side
    498,444.60x = 331,464,811,644.18
  5. Step 5: Solve for x
    x = 331,464,811,644.18/498,444.60
  6. Step 6: Final answer
    x = 664,998.30

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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.