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Finding the Third Proportional to 394,481.25 and 558,187.88

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Solution

The third proportional to 394,481.25 and 558,187.88 is: 789,831.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,481.25 : 558,187.88 = 558,187.88 : x
  2. Step 2: Convert to fraction form
    394,481.25/558,187.88 = 558,187.88/x
  3. Step 3: Cross multiply
    394,481.25x = 558,187.88 × 558,187.88
  4. Step 4: Simplify right side
    394,481.25x = 311,573,703,797.02
  5. Step 5: Solve for x
    x = 311,573,703,797.02/394,481.25
  6. Step 6: Final answer
    x = 789,831.47

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.