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Finding the Third Proportional to 382,976 and 818,080

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Solution

The third proportional to 382,976 and 818,080 is: 1,747,511.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    382,976 : 818,080 = 818,080 : x
  2. Step 2: Convert to fraction form
    382,976/818,080 = 818,080/x
  3. Step 3: Cross multiply
    382,976x = 818,080 × 818,080
  4. Step 4: Simplify right side
    382,976x = 669,254,886,400
  5. Step 5: Solve for x
    x = 669,254,886,400/382,976
  6. Step 6: Final answer
    x = 1,747,511.30

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.