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Finding the Third Proportional to 395,592 and 871,860

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Solution

The third proportional to 395,592 and 871,860 is: 1,921,524.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,592 : 871,860 = 871,860 : x
  2. Step 2: Convert to fraction form
    395,592/871,860 = 871,860/x
  3. Step 3: Cross multiply
    395,592x = 871,860 × 871,860
  4. Step 4: Simplify right side
    395,592x = 760,139,859,600
  5. Step 5: Solve for x
    x = 760,139,859,600/395,592
  6. Step 6: Final answer
    x = 1,921,524.85

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.