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Finding the Fourth Proportional to 636,960.46, 879,042.64 and 365,112.58

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Solution

The fourth proportional to 636,960.46, 879,042.64 and 365,112.58 is: 503,876.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,960.46 : 879,042.64 = 365,112.58 : x
  2. Step 2: Convert to fraction form
    636,960.46/879,042.64 = 365,112.58/x
  3. Step 3: Cross multiply
    636,960.46x = 879,042.64 × 365,112.58
  4. Step 4: Simplify right side
    636,960.46x = 320,949,526,220.41
  5. Step 5: Solve for x
    x = 320,949,526,220.41/636,960.46
  6. Step 6: Final answer
    x = 503,876.69

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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.