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Finding the Fourth Proportional to 636,327.22, 878,108.97 and 349,845.22

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Solution

The fourth proportional to 636,327.22, 878,108.97 and 349,845.22 is: 482,773.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,327.22 : 878,108.97 = 349,845.22 : x
  2. Step 2: Convert to fraction form
    636,327.22/878,108.97 = 349,845.22/x
  3. Step 3: Cross multiply
    636,327.22x = 878,108.97 × 349,845.22
  4. Step 4: Simplify right side
    636,327.22x = 307,202,225,793.62
  5. Step 5: Solve for x
    x = 307,202,225,793.62/636,327.22
  6. Step 6: Final answer
    x = 482,773.98

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1.5x scale

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.