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Finding the Fourth Proportional to 453,750.70, 680,626.05 and 418,321.30

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Solution

The fourth proportional to 453,750.70, 680,626.05 and 418,321.30 is: 627,481.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,750.70 : 680,626.05 = 418,321.30 : x
  2. Step 2: Convert to fraction form
    453,750.70/680,626.05 = 418,321.30/x
  3. Step 3: Cross multiply
    453,750.70x = 680,626.05 × 418,321.30
  4. Step 4: Simplify right side
    453,750.70x = 284,720,374,049.87
  5. Step 5: Solve for x
    x = 284,720,374,049.87/453,750.70
  6. Step 6: Final answer
    x = 627,481.95

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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.