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Finding the Fourth Proportional to 454,229.70, 681,344.55 and 276,645.30

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Solution

The fourth proportional to 454,229.70, 681,344.55 and 276,645.30 is: 414,967.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,229.70 : 681,344.55 = 276,645.30 : x
  2. Step 2: Convert to fraction form
    454,229.70/681,344.55 = 276,645.30/x
  3. Step 3: Cross multiply
    454,229.70x = 681,344.55 × 276,645.30
  4. Step 4: Simplify right side
    454,229.70x = 188,490,767,438.12
  5. Step 5: Solve for x
    x = 188,490,767,438.12/454,229.70
  6. Step 6: Final answer
    x = 414,967.95

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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.