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Finding the Fourth Proportional to 454,960.60, 682,440.90 and 449,055.70

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Solution

The fourth proportional to 454,960.60, 682,440.90 and 449,055.70 is: 673,583.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,960.60 : 682,440.90 = 449,055.70 : x
  2. Step 2: Convert to fraction form
    454,960.60/682,440.90 = 449,055.70/x
  3. Step 3: Cross multiply
    454,960.60x = 682,440.90 × 449,055.70
  4. Step 4: Simplify right side
    454,960.60x = 306,453,976,058.13
  5. Step 5: Solve for x
    x = 306,453,976,058.13/454,960.60
  6. Step 6: Final answer
    x = 673,583.55

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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.