Home / 1,000,432.50-1,500,195.15-431,545.20

Finding the Fourth Proportional to 1,000,432.50, 1,500,195.15 and 431,545.20

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Solution

The fourth proportional to 1,000,432.50, 1,500,195.15 and 431,545.20 is: 647,122.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,000,432.50 : 1,500,195.15 = 431,545.20 : x
  2. Step 2: Convert to fraction form
    1,000,432.50/1,500,195.15 = 431,545.20/x
  3. Step 3: Cross multiply
    1,000,432.50x = 1,500,195.15 × 431,545.20
  4. Step 4: Simplify right side
    1,000,432.50x = 647,402,016,045.78
  5. Step 5: Solve for x
    x = 647,402,016,045.78/1,000,432.50
  6. Step 6: Final answer
    x = 647,122.14

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Double scale
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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.