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Finding the Fourth Proportional to 412,872.60, 569,770.38 and 231,624.60

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Solution

The fourth proportional to 412,872.60, 569,770.38 and 231,624.60 is: 319,645.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,872.60 : 569,770.38 = 231,624.60 : x
  2. Step 2: Convert to fraction form
    412,872.60/569,770.38 = 231,624.60/x
  3. Step 3: Cross multiply
    412,872.60x = 569,770.38 × 231,624.60
  4. Step 4: Simplify right side
    412,872.60x = 131,972,836,359.35
  5. Step 5: Solve for x
    x = 131,972,836,359.35/412,872.60
  6. Step 6: Final answer
    x = 319,645.42

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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.