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Finding the Fourth Proportional to 636,375.72, 878,201.80 and 349,914.26

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Solution

The fourth proportional to 636,375.72, 878,201.80 and 349,914.26 is: 482,883.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,375.72 : 878,201.80 = 349,914.26 : x
  2. Step 2: Convert to fraction form
    636,375.72/878,201.80 = 349,914.26/x
  3. Step 3: Cross multiply
    636,375.72x = 878,201.80 × 349,914.26
  4. Step 4: Simplify right side
    636,375.72x = 307,295,334,298.39
  5. Step 5: Solve for x
    x = 307,295,334,298.39/636,375.72
  6. Step 6: Final answer
    x = 482,883.50

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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.