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Finding the Fourth Proportional to 454,954.10, 682,431.15 and 449,049.20

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Solution

The fourth proportional to 454,954.10, 682,431.15 and 449,049.20 is: 673,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,954.10 : 682,431.15 = 449,049.20 : x
  2. Step 2: Convert to fraction form
    454,954.10/682,431.15 = 449,049.20/x
  3. Step 3: Cross multiply
    454,954.10x = 682,431.15 × 449,049.20
  4. Step 4: Simplify right side
    454,954.10x = 306,445,161,962.58
  5. Step 5: Solve for x
    x = 306,445,161,962.58/454,954.10
  6. Step 6: Final answer
    x = 673,573.80

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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.