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Finding the Third Proportional to 580,720 and 871,080

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Solution

The third proportional to 580,720 and 871,080 is: 1,306,620

Step by Step Solution

  1. Step 1: Write the proportion equation
    580,720 : 871,080 = 871,080 : x
  2. Step 2: Convert to fraction form
    580,720/871,080 = 871,080/x
  3. Step 3: Cross multiply
    580,720x = 871,080 × 871,080
  4. Step 4: Simplify right side
    580,720x = 758,780,366,400
  5. Step 5: Solve for x
    x = 758,780,366,400/580,720
  6. Step 6: Final answer
    x = 1,306,620

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.