Home / 748,872.60-1,123,308.90-243,432.60

Finding the Fourth Proportional to 748,872.60, 1,123,308.90 and 243,432.60

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Solution

The fourth proportional to 748,872.60, 1,123,308.90 and 243,432.60 is: 365,148.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,872.60 : 1,123,308.90 = 243,432.60 : x
  2. Step 2: Convert to fraction form
    748,872.60/1,123,308.90 = 243,432.60/x
  3. Step 3: Cross multiply
    748,872.60x = 1,123,308.90 × 243,432.60
  4. Step 4: Simplify right side
    748,872.60x = 273,450,006,130.14
  5. Step 5: Solve for x
    x = 273,450,006,130.14/748,872.60
  6. Step 6: Final answer
    x = 365,148.90

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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.