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Finding the Fourth Proportional to 636,252.93, 878,045.81 and 349,780.23

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Solution

The fourth proportional to 636,252.93, 878,045.81 and 349,780.23 is: 482,705.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,252.93 : 878,045.81 = 349,780.23 : x
  2. Step 2: Convert to fraction form
    636,252.93/878,045.81 = 349,780.23/x
  3. Step 3: Cross multiply
    636,252.93x = 878,045.81 × 349,780.23
  4. Step 4: Simplify right side
    636,252.93x = 307,123,063,623.44
  5. Step 5: Solve for x
    x = 307,123,063,623.44/636,252.93
  6. Step 6: Final answer
    x = 482,705.93

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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.