Home / 748,890.40-1,123,335.60-327,719.20

Finding the Fourth Proportional to 748,890.40, 1,123,335.60 and 327,719.20

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Solution

The fourth proportional to 748,890.40, 1,123,335.60 and 327,719.20 is: 491,578.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,890.40 : 1,123,335.60 = 327,719.20 : x
  2. Step 2: Convert to fraction form
    748,890.40/1,123,335.60 = 327,719.20/x
  3. Step 3: Cross multiply
    748,890.40x = 1,123,335.60 × 327,719.20
  4. Step 4: Simplify right side
    748,890.40x = 368,138,644,163.52
  5. Step 5: Solve for x
    x = 368,138,644,163.52/748,890.40
  6. Step 6: Final answer
    x = 491,578.80

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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.