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Finding the Third Proportional to 332,534 and 688,720

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Solution

The third proportional to 332,534 and 688,720 is: 1,426,426.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,534 : 688,720 = 688,720 : x
  2. Step 2: Convert to fraction form
    332,534/688,720 = 688,720/x
  3. Step 3: Cross multiply
    332,534x = 688,720 × 688,720
  4. Step 4: Simplify right side
    332,534x = 474,335,238,400
  5. Step 5: Solve for x
    x = 474,335,238,400/332,534
  6. Step 6: Final answer
    x = 1,426,426.29

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.