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Finding the Fourth Proportional to 453,800.70, 680,704.95 and 129,587.96

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Solution

The fourth proportional to 453,800.70, 680,704.95 and 129,587.96 is: 194,383.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,800.70 : 680,704.95 = 129,587.96 : x
  2. Step 2: Convert to fraction form
    453,800.70/680,704.95 = 129,587.96/x
  3. Step 3: Cross multiply
    453,800.70x = 680,704.95 × 129,587.96
  4. Step 4: Simplify right side
    453,800.70x = 88,211,162,428.88
  5. Step 5: Solve for x
    x = 88,211,162,428.88/453,800.70
  6. Step 6: Final answer
    x = 194,383.05

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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.