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Finding the Fourth Proportional to 636,876.70, 878,891.45 and 350,414.62

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Solution

The fourth proportional to 636,876.70, 878,891.45 and 350,414.62 is: 483,573.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,876.70 : 878,891.45 = 350,414.62 : x
  2. Step 2: Convert to fraction form
    636,876.70/878,891.45 = 350,414.62/x
  3. Step 3: Cross multiply
    636,876.70x = 878,891.45 × 350,414.62
  4. Step 4: Simplify right side
    636,876.70x = 307,976,413,473.00
  5. Step 5: Solve for x
    x = 307,976,413,473.00/636,876.70
  6. Step 6: Final answer
    x = 483,573.06

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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.