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Finding the Third Proportional to 659,407.50 and 1,687,891.50

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Solution

The third proportional to 659,407.50 and 1,687,891.50 is: 4,320,511.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,407.50 : 1,687,891.50 = 1,687,891.50 : x
  2. Step 2: Convert to fraction form
    659,407.50/1,687,891.50 = 1,687,891.50/x
  3. Step 3: Cross multiply
    659,407.50x = 1,687,891.50 × 1,687,891.50
  4. Step 4: Simplify right side
    659,407.50x = 2,848,977,715,772.25
  5. Step 5: Solve for x
    x = 2,848,977,715,772.25/659,407.50
  6. Step 6: Final answer
    x = 4,320,511.54

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Why These Related Problems?

These problems maintain the same ratio (2.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.