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Finding the Fourth Proportional to 652,227.60, 899,858.88 and 394,007.88

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Solution

The fourth proportional to 652,227.60, 899,858.88 and 394,007.88 is: 543,600.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,227.60 : 899,858.88 = 394,007.88 : x
  2. Step 2: Convert to fraction form
    652,227.60/899,858.88 = 394,007.88/x
  3. Step 3: Cross multiply
    652,227.60x = 899,858.88 × 394,007.88
  4. Step 4: Simplify right side
    652,227.60x = 354,551,489,607.97
  5. Step 5: Solve for x
    x = 354,551,489,607.97/652,227.60
  6. Step 6: Final answer
    x = 543,600.87

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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.