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Finding the Fourth Proportional to 454,987.60, 682,481.40 and 449,082.70

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Solution

The fourth proportional to 454,987.60, 682,481.40 and 449,082.70 is: 673,624.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,987.60 : 682,481.40 = 449,082.70 : x
  2. Step 2: Convert to fraction form
    454,987.60/682,481.40 = 449,082.70/x
  3. Step 3: Cross multiply
    454,987.60x = 682,481.40 × 449,082.70
  4. Step 4: Simplify right side
    454,987.60x = 306,490,589,811.78
  5. Step 5: Solve for x
    x = 306,490,589,811.78/454,987.60
  6. Step 6: Final answer
    x = 673,624.05

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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.