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Finding the Third Proportional to 640,468.88 and 1,375,909.88

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Solution

The third proportional to 640,468.88 and 1,375,909.88 is: 2,955,846.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,468.88 : 1,375,909.88 = 1,375,909.88 : x
  2. Step 2: Convert to fraction form
    640,468.88/1,375,909.88 = 1,375,909.88/x
  3. Step 3: Cross multiply
    640,468.88x = 1,375,909.88 × 1,375,909.88
  4. Step 4: Simplify right side
    640,468.88x = 1,893,127,984,122.52
  5. Step 5: Solve for x
    x = 1,893,127,984,122.52/640,468.88
  6. Step 6: Final answer
    x = 2,955,846.97

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