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Finding the Third Proportional to 329,916 and 706,488

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Solution

The third proportional to 329,916 and 706,488 is: 1,512,885.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,916 : 706,488 = 706,488 : x
  2. Step 2: Convert to fraction form
    329,916/706,488 = 706,488/x
  3. Step 3: Cross multiply
    329,916x = 706,488 × 706,488
  4. Step 4: Simplify right side
    329,916x = 499,125,294,144
  5. Step 5: Solve for x
    x = 499,125,294,144/329,916
  6. Step 6: Final answer
    x = 1,512,885.99

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.