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Finding the Third Proportional to 258,739 and 565,569

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Solution

The third proportional to 258,739 and 565,569 is: 1,236,258.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,739 : 565,569 = 565,569 : x
  2. Step 2: Convert to fraction form
    258,739/565,569 = 565,569/x
  3. Step 3: Cross multiply
    258,739x = 565,569 × 565,569
  4. Step 4: Simplify right side
    258,739x = 319,868,293,761
  5. Step 5: Solve for x
    x = 319,868,293,761/258,739
  6. Step 6: Final answer
    x = 1,236,258.52

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.