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Finding the Third Proportional to 380,828 and 836,374

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Solution

The third proportional to 380,828 and 836,374 is: 1,836,843.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,828 : 836,374 = 836,374 : x
  2. Step 2: Convert to fraction form
    380,828/836,374 = 836,374/x
  3. Step 3: Cross multiply
    380,828x = 836,374 × 836,374
  4. Step 4: Simplify right side
    380,828x = 699,521,467,876
  5. Step 5: Solve for x
    x = 699,521,467,876/380,828
  6. Step 6: Final answer
    x = 1,836,843.58

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.