Home / 723,752.20-1,086,665.10-408,824.20

Finding the Fourth Proportional to 723,752.20, 1,086,665.10 and 408,824.20

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Solution

The fourth proportional to 723,752.20, 1,086,665.10 and 408,824.20 is: 613,821.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,752.20 : 1,086,665.10 = 408,824.20 : x
  2. Step 2: Convert to fraction form
    723,752.20/1,086,665.10 = 408,824.20/x
  3. Step 3: Cross multiply
    723,752.20x = 1,086,665.10 × 408,824.20
  4. Step 4: Simplify right side
    723,752.20x = 444,254,990,175.42
  5. Step 5: Solve for x
    x = 444,254,990,175.42/723,752.20
  6. Step 6: Final answer
    x = 613,821.95

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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.