Home / 748,892.40-1,123,338.60-327,721.20

Finding the Fourth Proportional to 748,892.40, 1,123,338.60 and 327,721.20

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Solution

The fourth proportional to 748,892.40, 1,123,338.60 and 327,721.20 is: 491,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,892.40 : 1,123,338.60 = 327,721.20 : x
  2. Step 2: Convert to fraction form
    748,892.40/1,123,338.60 = 327,721.20/x
  3. Step 3: Cross multiply
    748,892.40x = 1,123,338.60 × 327,721.20
  4. Step 4: Simplify right side
    748,892.40x = 368,141,873,998.32
  5. Step 5: Solve for x
    x = 368,141,873,998.32/748,892.40
  6. Step 6: Final answer
    x = 491,581.80

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Half scale
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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.