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Finding the Fourth Proportional to 668,356.60, 1,002,534.90 and 587,000.20

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Solution

The fourth proportional to 668,356.60, 1,002,534.90 and 587,000.20 is: 880,500.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,356.60 : 1,002,534.90 = 587,000.20 : x
  2. Step 2: Convert to fraction form
    668,356.60/1,002,534.90 = 587,000.20/x
  3. Step 3: Cross multiply
    668,356.60x = 1,002,534.90 × 587,000.20
  4. Step 4: Simplify right side
    668,356.60x = 588,488,186,806.98
  5. Step 5: Solve for x
    x = 588,488,186,806.98/668,356.60
  6. Step 6: Final answer
    x = 880,500.30

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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.