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Finding the Third Proportional to 388,565 and 836,180

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Solution

The third proportional to 388,565 and 836,180 is: 1,799,433.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,565 : 836,180 = 836,180 : x
  2. Step 2: Convert to fraction form
    388,565/836,180 = 836,180/x
  3. Step 3: Cross multiply
    388,565x = 836,180 × 836,180
  4. Step 4: Simplify right side
    388,565x = 699,196,992,400
  5. Step 5: Solve for x
    x = 699,196,992,400/388,565
  6. Step 6: Final answer
    x = 1,799,433.79

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.