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Finding the Third Proportional to 259,045 and 557,455

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Solution

The third proportional to 259,045 and 557,455 is: 1,199,621.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,045 : 557,455 = 557,455 : x
  2. Step 2: Convert to fraction form
    259,045/557,455 = 557,455/x
  3. Step 3: Cross multiply
    259,045x = 557,455 × 557,455
  4. Step 4: Simplify right side
    259,045x = 310,756,077,025
  5. Step 5: Solve for x
    x = 310,756,077,025/259,045
  6. Step 6: Final answer
    x = 1,199,621.98

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.