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Finding the Fourth Proportional to 656,959.40, 985,439.10 and 550,671.20

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Solution

The fourth proportional to 656,959.40, 985,439.10 and 550,671.20 is: 826,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,959.40 : 985,439.10 = 550,671.20 : x
  2. Step 2: Convert to fraction form
    656,959.40/985,439.10 = 550,671.20/x
  3. Step 3: Cross multiply
    656,959.40x = 985,439.10 × 550,671.20
  4. Step 4: Simplify right side
    656,959.40x = 542,652,931,723.92
  5. Step 5: Solve for x
    x = 542,652,931,723.92/656,959.40
  6. Step 6: Final answer
    x = 826,006.80

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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.