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Finding the Third Proportional to 515,163 and 757,845

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Solution

The third proportional to 515,163 and 757,845 is: 1,114,849.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,163 : 757,845 = 757,845 : x
  2. Step 2: Convert to fraction form
    515,163/757,845 = 757,845/x
  3. Step 3: Cross multiply
    515,163x = 757,845 × 757,845
  4. Step 4: Simplify right side
    515,163x = 574,329,044,025
  5. Step 5: Solve for x
    x = 574,329,044,025/515,163
  6. Step 6: Final answer
    x = 1,114,849.17

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.