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Finding the Fourth Proportional to 411,694.32, 618,248.22 and 252,703.89

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Solution

The fourth proportional to 411,694.32, 618,248.22 and 252,703.89 is: 379,489.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,694.32 : 618,248.22 = 252,703.89 : x
  2. Step 2: Convert to fraction form
    411,694.32/618,248.22 = 252,703.89/x
  3. Step 3: Cross multiply
    411,694.32x = 618,248.22 × 252,703.89
  4. Step 4: Simplify right side
    411,694.32x = 156,233,730,179.58
  5. Step 5: Solve for x
    x = 156,233,730,179.58/411,694.32
  6. Step 6: Final answer
    x = 379,489.64

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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.