Home / 986,502.40-1,479,753.60-321,654.40

Finding the Fourth Proportional to 986,502.40, 1,479,753.60 and 321,654.40

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Solution

The fourth proportional to 986,502.40, 1,479,753.60 and 321,654.40 is: 482,481.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,502.40 : 1,479,753.60 = 321,654.40 : x
  2. Step 2: Convert to fraction form
    986,502.40/1,479,753.60 = 321,654.40/x
  3. Step 3: Cross multiply
    986,502.40x = 1,479,753.60 × 321,654.40
  4. Step 4: Simplify right side
    986,502.40x = 475,969,256,355.84
  5. Step 5: Solve for x
    x = 475,969,256,355.84/986,502.40
  6. Step 6: Final answer
    x = 482,481.60

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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.