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Finding the Third Proportional to 407,752.50 and 629,808.75

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Solution

The third proportional to 407,752.50 and 629,808.75 is: 972,793.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,752.50 : 629,808.75 = 629,808.75 : x
  2. Step 2: Convert to fraction form
    407,752.50/629,808.75 = 629,808.75/x
  3. Step 3: Cross multiply
    407,752.50x = 629,808.75 × 629,808.75
  4. Step 4: Simplify right side
    407,752.50x = 396,659,061,576.56
  5. Step 5: Solve for x
    x = 396,659,061,576.56/407,752.50
  6. Step 6: Final answer
    x = 972,793.70

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.