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Finding the Third Proportional to 318,578 and 695,110

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Solution

The third proportional to 318,578 and 695,110 is: 1,516,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,578 : 695,110 = 695,110 : x
  2. Step 2: Convert to fraction form
    318,578/695,110 = 695,110/x
  3. Step 3: Cross multiply
    318,578x = 695,110 × 695,110
  4. Step 4: Simplify right side
    318,578x = 483,177,912,100
  5. Step 5: Solve for x
    x = 483,177,912,100/318,578
  6. Step 6: Final answer
    x = 1,516,670.68

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.