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Finding the Third Proportional to 323,279 and 702,515

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Solution

The third proportional to 323,279 and 702,515 is: 1,526,629.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,279 : 702,515 = 702,515 : x
  2. Step 2: Convert to fraction form
    323,279/702,515 = 702,515/x
  3. Step 3: Cross multiply
    323,279x = 702,515 × 702,515
  4. Step 4: Simplify right side
    323,279x = 493,527,325,225
  5. Step 5: Solve for x
    x = 493,527,325,225/323,279
  6. Step 6: Final answer
    x = 1,526,629.71

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.