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Finding the Third Proportional to 378,894 and 836,838

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Solution

The third proportional to 378,894 and 836,838 is: 1,848,268.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,894 : 836,838 = 836,838 : x
  2. Step 2: Convert to fraction form
    378,894/836,838 = 836,838/x
  3. Step 3: Cross multiply
    378,894x = 836,838 × 836,838
  4. Step 4: Simplify right side
    378,894x = 700,297,838,244
  5. Step 5: Solve for x
    x = 700,297,838,244/378,894
  6. Step 6: Final answer
    x = 1,848,268.48

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Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.