Home / 728,088.40-1,092,132.60-657,229.60

Finding the Fourth Proportional to 728,088.40, 1,092,132.60 and 657,229.60

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Solution

The fourth proportional to 728,088.40, 1,092,132.60 and 657,229.60 is: 985,844.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,088.40 : 1,092,132.60 = 657,229.60 : x
  2. Step 2: Convert to fraction form
    728,088.40/1,092,132.60 = 657,229.60/x
  3. Step 3: Cross multiply
    728,088.40x = 1,092,132.60 × 657,229.60
  4. Step 4: Simplify right side
    728,088.40x = 717,781,871,844.96
  5. Step 5: Solve for x
    x = 717,781,871,844.96/728,088.40
  6. Step 6: Final answer
    x = 985,844.40

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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.