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Finding the Fourth Proportional to 454,965, 627,851.70 and 253,761

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Solution

The fourth proportional to 454,965, 627,851.70 and 253,761 is: 350,190.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,965 : 627,851.70 = 253,761 : x
  2. Step 2: Convert to fraction form
    454,965/627,851.70 = 253,761/x
  3. Step 3: Cross multiply
    454,965x = 627,851.70 × 253,761
  4. Step 4: Simplify right side
    454,965x = 159,324,275,243.70
  5. Step 5: Solve for x
    x = 159,324,275,243.70/454,965
  6. Step 6: Final answer
    x = 350,190.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.