Home / 728,276.38-1,092,414.56-229,640.38

Finding the Fourth Proportional to 728,276.38, 1,092,414.56 and 229,640.38

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Solution

The fourth proportional to 728,276.38, 1,092,414.56 and 229,640.38 is: 344,460.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,276.38 : 1,092,414.56 = 229,640.38 : x
  2. Step 2: Convert to fraction form
    728,276.38/1,092,414.56 = 229,640.38/x
  3. Step 3: Cross multiply
    728,276.38x = 1,092,414.56 × 229,640.38
  4. Step 4: Simplify right side
    728,276.38x = 250,862,494,675.93
  5. Step 5: Solve for x
    x = 250,862,494,675.93/728,276.38
  6. Step 6: Final answer
    x = 344,460.57

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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.