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Finding the Third Proportional to 512,419.50 and 764,489.25

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Solution

The third proportional to 512,419.50 and 764,489.25 is: 1,140,557.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,419.50 : 764,489.25 = 764,489.25 : x
  2. Step 2: Convert to fraction form
    512,419.50/764,489.25 = 764,489.25/x
  3. Step 3: Cross multiply
    512,419.50x = 764,489.25 × 764,489.25
  4. Step 4: Simplify right side
    512,419.50x = 584,443,813,365.56
  5. Step 5: Solve for x
    x = 584,443,813,365.56/512,419.50
  6. Step 6: Final answer
    x = 1,140,557.32

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.