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Finding the Third Proportional to 291,227 and 636,334

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Solution

The third proportional to 291,227 and 636,334 is: 1,390,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,227 : 636,334 = 636,334 : x
  2. Step 2: Convert to fraction form
    291,227/636,334 = 636,334/x
  3. Step 3: Cross multiply
    291,227x = 636,334 × 636,334
  4. Step 4: Simplify right side
    291,227x = 404,920,959,556
  5. Step 5: Solve for x
    x = 404,920,959,556/291,227
  6. Step 6: Final answer
    x = 1,390,396.36

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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.