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Finding the Third Proportional to 640,231.50 and 1,339,270.50

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Solution

The third proportional to 640,231.50 and 1,339,270.50 is: 2,801,557.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,231.50 : 1,339,270.50 = 1,339,270.50 : x
  2. Step 2: Convert to fraction form
    640,231.50/1,339,270.50 = 1,339,270.50/x
  3. Step 3: Cross multiply
    640,231.50x = 1,339,270.50 × 1,339,270.50
  4. Step 4: Simplify right side
    640,231.50x = 1,793,645,472,170.25
  5. Step 5: Solve for x
    x = 1,793,645,472,170.25/640,231.50
  6. Step 6: Final answer
    x = 2,801,557.67

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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.