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Finding the Third Proportional to 261,990 and 534,972

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Solution

The third proportional to 261,990 and 534,972 is: 1,092,389.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,990 : 534,972 = 534,972 : x
  2. Step 2: Convert to fraction form
    261,990/534,972 = 534,972/x
  3. Step 3: Cross multiply
    261,990x = 534,972 × 534,972
  4. Step 4: Simplify right side
    261,990x = 286,195,040,784
  5. Step 5: Solve for x
    x = 286,195,040,784/261,990
  6. Step 6: Final answer
    x = 1,092,389.18

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Why These Related Problems?

These problems maintain the same ratio (2.04) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.