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Finding the Fourth Proportional to 454,968, 627,875.28 and 253,764

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Solution

The fourth proportional to 454,968, 627,875.28 and 253,764 is: 350,205.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,968 : 627,875.28 = 253,764 : x
  2. Step 2: Convert to fraction form
    454,968/627,875.28 = 253,764/x
  3. Step 3: Cross multiply
    454,968x = 627,875.28 × 253,764
  4. Step 4: Simplify right side
    454,968x = 159,332,142,553.92
  5. Step 5: Solve for x
    x = 159,332,142,553.92/454,968
  6. Step 6: Final answer
    x = 350,205.16

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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.