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Finding the Fourth Proportional to 659,508.56, 988,576.96 and 254,978.61

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Solution

The fourth proportional to 659,508.56, 988,576.96 and 254,978.61 is: 382,202.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,508.56 : 988,576.96 = 254,978.61 : x
  2. Step 2: Convert to fraction form
    659,508.56/988,576.96 = 254,978.61/x
  3. Step 3: Cross multiply
    659,508.56x = 988,576.96 × 254,978.61
  4. Step 4: Simplify right side
    659,508.56x = 252,065,980,159.99
  5. Step 5: Solve for x
    x = 252,065,980,159.99/659,508.56
  6. Step 6: Final answer
    x = 382,202.74

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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.