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Finding the Third Proportional to 380,866 and 836,455

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Solution

The third proportional to 380,866 and 836,455 is: 1,837,016.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,866 : 836,455 = 836,455 : x
  2. Step 2: Convert to fraction form
    380,866/836,455 = 836,455/x
  3. Step 3: Cross multiply
    380,866x = 836,455 × 836,455
  4. Step 4: Simplify right side
    380,866x = 699,656,967,025
  5. Step 5: Solve for x
    x = 699,656,967,025/380,866
  6. Step 6: Final answer
    x = 1,837,016.08

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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.