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Finding the Third Proportional to 299,394 and 657,828

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Solution

The third proportional to 299,394 and 657,828 is: 1,445,378.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,394 : 657,828 = 657,828 : x
  2. Step 2: Convert to fraction form
    299,394/657,828 = 657,828/x
  3. Step 3: Cross multiply
    299,394x = 657,828 × 657,828
  4. Step 4: Simplify right side
    299,394x = 432,737,677,584
  5. Step 5: Solve for x
    x = 432,737,677,584/299,394
  6. Step 6: Final answer
    x = 1,445,378.59

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.