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Finding the Third Proportional to 378,101.25 and 791,255.25

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Solution

The third proportional to 378,101.25 and 791,255.25 is: 1,655,865.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,101.25 : 791,255.25 = 791,255.25 : x
  2. Step 2: Convert to fraction form
    378,101.25/791,255.25 = 791,255.25/x
  3. Step 3: Cross multiply
    378,101.25x = 791,255.25 × 791,255.25
  4. Step 4: Simplify right side
    378,101.25x = 626,084,870,652.56
  5. Step 5: Solve for x
    x = 626,084,870,652.56/378,101.25
  6. Step 6: Final answer
    x = 1,655,865.65

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.