Home / 526,143.25-726,148.76-296,747.61

Finding the Fourth Proportional to 526,143.25, 726,148.76 and 296,747.61

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Solution

The fourth proportional to 526,143.25, 726,148.76 and 296,747.61 is: 409,551.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,143.25 : 726,148.76 = 296,747.61 : x
  2. Step 2: Convert to fraction form
    526,143.25/726,148.76 = 296,747.61/x
  3. Step 3: Cross multiply
    526,143.25x = 726,148.76 × 296,747.61
  4. Step 4: Simplify right side
    526,143.25x = 215,482,909,034.46
  5. Step 5: Solve for x
    x = 215,482,909,034.46/526,143.25
  6. Step 6: Final answer
    x = 409,551.79

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.