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Finding the Fourth Proportional to 404,391.92, 606,566 and 123,909.98

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Solution

The fourth proportional to 404,391.92, 606,566 and 123,909.98 is: 185,858.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,391.92 : 606,566 = 123,909.98 : x
  2. Step 2: Convert to fraction form
    404,391.92/606,566 = 123,909.98/x
  3. Step 3: Cross multiply
    404,391.92x = 606,566 × 123,909.98
  4. Step 4: Simplify right side
    404,391.92x = 75,159,580,928.68
  5. Step 5: Solve for x
    x = 75,159,580,928.68/404,391.92
  6. Step 6: Final answer
    x = 185,858.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.