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Finding the Fourth Proportional to 449,817.68, 674,626.92 and 129,899.88

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Solution

The fourth proportional to 449,817.68, 674,626.92 and 129,899.88 is: 194,821.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,817.68 : 674,626.92 = 129,899.88 : x
  2. Step 2: Convert to fraction form
    449,817.68/674,626.92 = 129,899.88/x
  3. Step 3: Cross multiply
    449,817.68x = 674,626.92 × 129,899.88
  4. Step 4: Simplify right side
    449,817.68x = 87,633,955,952.77
  5. Step 5: Solve for x
    x = 87,633,955,952.77/449,817.68
  6. Step 6: Final answer
    x = 194,821.06

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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.