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Finding the Fourth Proportional to 497,761.40, 746,642.10 and 451,105.40

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Solution

The fourth proportional to 497,761.40, 746,642.10 and 451,105.40 is: 676,658.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,761.40 : 746,642.10 = 451,105.40 : x
  2. Step 2: Convert to fraction form
    497,761.40/746,642.10 = 451,105.40/x
  3. Step 3: Cross multiply
    497,761.40x = 746,642.10 × 451,105.40
  4. Step 4: Simplify right side
    497,761.40x = 336,814,283,177.34
  5. Step 5: Solve for x
    x = 336,814,283,177.34/497,761.40
  6. Step 6: Final answer
    x = 676,658.10

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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.