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Finding the Fourth Proportional to 659,761.29, 989,576.31 and 304,770.18

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Solution

The fourth proportional to 659,761.29, 989,576.31 and 304,770.18 is: 457,124.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,761.29 : 989,576.31 = 304,770.18 : x
  2. Step 2: Convert to fraction form
    659,761.29/989,576.31 = 304,770.18/x
  3. Step 3: Cross multiply
    659,761.29x = 989,576.31 × 304,770.18
  4. Step 4: Simplify right side
    659,761.29x = 301,593,350,122.44
  5. Step 5: Solve for x
    x = 301,593,350,122.44/659,761.29
  6. Step 6: Final answer
    x = 457,124.96

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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.