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Finding the Fourth Proportional to 615,713.97, 849,737.82 and 343,834.41

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Solution

The fourth proportional to 615,713.97, 849,737.82 and 343,834.41 is: 474,520.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,713.97 : 849,737.82 = 343,834.41 : x
  2. Step 2: Convert to fraction form
    615,713.97/849,737.82 = 343,834.41/x
  3. Step 3: Cross multiply
    615,713.97x = 849,737.82 × 343,834.41
  4. Step 4: Simplify right side
    615,713.97x = 292,169,104,118.73
  5. Step 5: Solve for x
    x = 292,169,104,118.73/615,713.97
  6. Step 6: Final answer
    x = 474,520.83

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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.