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Finding the Third Proportional to 440,500 and 669,976

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Solution

The third proportional to 440,500 and 669,976 is: 1,018,996.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,500 : 669,976 = 669,976 : x
  2. Step 2: Convert to fraction form
    440,500/669,976 = 669,976/x
  3. Step 3: Cross multiply
    440,500x = 669,976 × 669,976
  4. Step 4: Simplify right side
    440,500x = 448,867,840,576
  5. Step 5: Solve for x
    x = 448,867,840,576/440,500
  6. Step 6: Final answer
    x = 1,018,996.23

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.