Home / 827,229.40-1,240,844.10-472,279.30

Finding the Fourth Proportional to 827,229.40, 1,240,844.10 and 472,279.30

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Solution

The fourth proportional to 827,229.40, 1,240,844.10 and 472,279.30 is: 708,418.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,229.40 : 1,240,844.10 = 472,279.30 : x
  2. Step 2: Convert to fraction form
    827,229.40/1,240,844.10 = 472,279.30/x
  3. Step 3: Cross multiply
    827,229.40x = 1,240,844.10 × 472,279.30
  4. Step 4: Simplify right side
    827,229.40x = 586,024,982,957.13
  5. Step 5: Solve for x
    x = 586,024,982,957.13/827,229.40
  6. Step 6: Final answer
    x = 708,418.95

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Double scale
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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.