Home / 747,164.75-1,031,087.60-478,892.75

Finding the Fourth Proportional to 747,164.75, 1,031,087.60 and 478,892.75

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Solution

The fourth proportional to 747,164.75, 1,031,087.60 and 478,892.75 is: 660,872.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,164.75 : 1,031,087.60 = 478,892.75 : x
  2. Step 2: Convert to fraction form
    747,164.75/1,031,087.60 = 478,892.75/x
  3. Step 3: Cross multiply
    747,164.75x = 1,031,087.60 × 478,892.75
  4. Step 4: Simplify right side
    747,164.75x = 493,780,376,254.90
  5. Step 5: Solve for x
    x = 493,780,376,254.90/747,164.75
  6. Step 6: Final answer
    x = 660,872.15

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Double scale
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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.