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Finding the Third Proportional to 258,040 and 565,648

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Solution

The third proportional to 258,040 and 565,648 is: 1,239,953.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,040 : 565,648 = 565,648 : x
  2. Step 2: Convert to fraction form
    258,040/565,648 = 565,648/x
  3. Step 3: Cross multiply
    258,040x = 565,648 × 565,648
  4. Step 4: Simplify right side
    258,040x = 319,957,659,904
  5. Step 5: Solve for x
    x = 319,957,659,904/258,040
  6. Step 6: Final answer
    x = 1,239,953.73

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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.