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Finding the Fourth Proportional to 636,871.41, 878,882.50 and 350,385.35

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Solution

The fourth proportional to 636,871.41, 878,882.50 and 350,385.35 is: 483,531.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,871.41 : 878,882.50 = 350,385.35 : x
  2. Step 2: Convert to fraction form
    636,871.41/878,882.50 = 350,385.35/x
  3. Step 3: Cross multiply
    636,871.41x = 878,882.50 × 350,385.35
  4. Step 4: Simplify right side
    636,871.41x = 307,947,548,414.94
  5. Step 5: Solve for x
    x = 307,947,548,414.94/636,871.41
  6. Step 6: Final answer
    x = 483,531.75

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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.