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Finding the Third Proportional to 719,919 and 1,555,292

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Solution

The third proportional to 719,919 and 1,555,292 is: 3,360,007.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,919 : 1,555,292 = 1,555,292 : x
  2. Step 2: Convert to fraction form
    719,919/1,555,292 = 1,555,292/x
  3. Step 3: Cross multiply
    719,919x = 1,555,292 × 1,555,292
  4. Step 4: Simplify right side
    719,919x = 2,418,933,205,264
  5. Step 5: Solve for x
    x = 2,418,933,205,264/719,919
  6. Step 6: Final answer
    x = 3,360,007.45

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.