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Finding the Third Proportional to 615,243 and 1,338,198

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Solution

The third proportional to 615,243 and 1,338,198 is: 2,910,677.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,243 : 1,338,198 = 1,338,198 : x
  2. Step 2: Convert to fraction form
    615,243/1,338,198 = 1,338,198/x
  3. Step 3: Cross multiply
    615,243x = 1,338,198 × 1,338,198
  4. Step 4: Simplify right side
    615,243x = 1,790,773,887,204
  5. Step 5: Solve for x
    x = 1,790,773,887,204/615,243
  6. Step 6: Final answer
    x = 2,910,677.39

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.