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Finding the Third Proportional to 987,180 and 1,492,920.75

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Solution

The third proportional to 987,180 and 1,492,920.75 is: 2,257,756.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,180 : 1,492,920.75 = 1,492,920.75 : x
  2. Step 2: Convert to fraction form
    987,180/1,492,920.75 = 1,492,920.75/x
  3. Step 3: Cross multiply
    987,180x = 1,492,920.75 × 1,492,920.75
  4. Step 4: Simplify right side
    987,180x = 2,228,812,365,780.56
  5. Step 5: Solve for x
    x = 2,228,812,365,780.56/987,180
  6. Step 6: Final answer
    x = 2,257,756.81

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.