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Finding the Third Proportional to 812,072.75 and 1,135,293.50

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Solution

The third proportional to 812,072.75 and 1,135,293.50 is: 1,587,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,072.75 : 1,135,293.50 = 1,135,293.50 : x
  2. Step 2: Convert to fraction form
    812,072.75/1,135,293.50 = 1,135,293.50/x
  3. Step 3: Cross multiply
    812,072.75x = 1,135,293.50 × 1,135,293.50
  4. Step 4: Simplify right side
    812,072.75x = 1,288,891,331,142.25
  5. Step 5: Solve for x
    x = 1,288,891,331,142.25/812,072.75
  6. Step 6: Final answer
    x = 1,587,162.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.