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Finding the Fourth Proportional to 515,584.80, 711,761.04 and 324,891.36

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Solution

The fourth proportional to 515,584.80, 711,761.04 and 324,891.36 is: 448,510.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,584.80 : 711,761.04 = 324,891.36 : x
  2. Step 2: Convert to fraction form
    515,584.80/711,761.04 = 324,891.36/x
  3. Step 3: Cross multiply
    515,584.80x = 711,761.04 × 324,891.36
  4. Step 4: Simplify right side
    515,584.80x = 231,245,012,280.61
  5. Step 5: Solve for x
    x = 231,245,012,280.61/515,584.80
  6. Step 6: Final answer
    x = 448,510.14

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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.