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Finding the Fourth Proportional to 438,847.52, 605,610 and 247,861.28

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Solution

The fourth proportional to 438,847.52, 605,610 and 247,861.28 is: 342,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,847.52 : 605,610 = 247,861.28 : x
  2. Step 2: Convert to fraction form
    438,847.52/605,610 = 247,861.28/x
  3. Step 3: Cross multiply
    438,847.52x = 605,610 × 247,861.28
  4. Step 4: Simplify right side
    438,847.52x = 150,107,269,780.80
  5. Step 5: Solve for x
    x = 150,107,269,780.80/438,847.52
  6. Step 6: Final answer
    x = 342,048.80

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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.