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Finding the Fourth Proportional to 636,672, 878,732.15 and 364,922.04

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Solution

The fourth proportional to 636,672, 878,732.15 and 364,922.04 is: 503,663.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,672 : 878,732.15 = 364,922.04 : x
  2. Step 2: Convert to fraction form
    636,672/878,732.15 = 364,922.04/x
  3. Step 3: Cross multiply
    636,672x = 878,732.15 × 364,922.04
  4. Step 4: Simplify right side
    636,672x = 320,668,726,966.98
  5. Step 5: Solve for x
    x = 320,668,726,966.98/636,672
  6. Step 6: Final answer
    x = 503,663.94

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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.