Home / 748,874.20-1,123,311.30-216,412.60

Finding the Fourth Proportional to 748,874.20, 1,123,311.30 and 216,412.60

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Solution

The fourth proportional to 748,874.20, 1,123,311.30 and 216,412.60 is: 324,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,874.20 : 1,123,311.30 = 216,412.60 : x
  2. Step 2: Convert to fraction form
    748,874.20/1,123,311.30 = 216,412.60/x
  3. Step 3: Cross multiply
    748,874.20x = 1,123,311.30 × 216,412.60
  4. Step 4: Simplify right side
    748,874.20x = 243,098,719,042.38
  5. Step 5: Solve for x
    x = 243,098,719,042.38/748,874.20
  6. Step 6: Final answer
    x = 324,618.90

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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.