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Finding the Fourth Proportional to 454,954.60, 682,431.90 and 449,049.70

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Solution

The fourth proportional to 454,954.60, 682,431.90 and 449,049.70 is: 673,574.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,954.60 : 682,431.90 = 449,049.70 : x
  2. Step 2: Convert to fraction form
    454,954.60/682,431.90 = 449,049.70/x
  3. Step 3: Cross multiply
    454,954.60x = 682,431.90 × 449,049.70
  4. Step 4: Simplify right side
    454,954.60x = 306,445,839,965.43
  5. Step 5: Solve for x
    x = 306,445,839,965.43/454,954.60
  6. Step 6: Final answer
    x = 673,574.55

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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.