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Finding the Third Proportional to 815,118.50 and 1,787,701

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Solution

The third proportional to 815,118.50 and 1,787,701 is: 3,920,748.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,118.50 : 1,787,701 = 1,787,701 : x
  2. Step 2: Convert to fraction form
    815,118.50/1,787,701 = 1,787,701/x
  3. Step 3: Cross multiply
    815,118.50x = 1,787,701 × 1,787,701
  4. Step 4: Simplify right side
    815,118.50x = 3,195,874,865,401
  5. Step 5: Solve for x
    x = 3,195,874,865,401/815,118.50
  6. Step 6: Final answer
    x = 3,920,748.78

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.