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Finding the Fourth Proportional to 479,539, 661,763.82 and 267,571

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Solution

The fourth proportional to 479,539, 661,763.82 and 267,571 is: 369,247.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,539 : 661,763.82 = 267,571 : x
  2. Step 2: Convert to fraction form
    479,539/661,763.82 = 267,571/x
  3. Step 3: Cross multiply
    479,539x = 661,763.82 × 267,571
  4. Step 4: Simplify right side
    479,539x = 177,068,807,081.22
  5. Step 5: Solve for x
    x = 177,068,807,081.22/479,539
  6. Step 6: Final answer
    x = 369,247.98

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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.