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Finding the Third Proportional to 305,414 and 657,654

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Solution

The third proportional to 305,414 and 657,654 is: 1,416,139.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,414 : 657,654 = 657,654 : x
  2. Step 2: Convert to fraction form
    305,414/657,654 = 657,654/x
  3. Step 3: Cross multiply
    305,414x = 657,654 × 657,654
  4. Step 4: Simplify right side
    305,414x = 432,508,783,716
  5. Step 5: Solve for x
    x = 432,508,783,716/305,414
  6. Step 6: Final answer
    x = 1,416,139.35

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.