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Finding the Third Proportional to 538,832 and 836,688

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Solution

The third proportional to 538,832 and 836,688 is: 1,299,193.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,832 : 836,688 = 836,688 : x
  2. Step 2: Convert to fraction form
    538,832/836,688 = 836,688/x
  3. Step 3: Cross multiply
    538,832x = 836,688 × 836,688
  4. Step 4: Simplify right side
    538,832x = 700,046,809,344
  5. Step 5: Solve for x
    x = 700,046,809,344/538,832
  6. Step 6: Final answer
    x = 1,299,193.09

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.