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Finding the Third Proportional to 336,108 and 520,687

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Solution

The third proportional to 336,108 and 520,687 is: 806,630.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,108 : 520,687 = 520,687 : x
  2. Step 2: Convert to fraction form
    336,108/520,687 = 520,687/x
  3. Step 3: Cross multiply
    336,108x = 520,687 × 520,687
  4. Step 4: Simplify right side
    336,108x = 271,114,951,969
  5. Step 5: Solve for x
    x = 271,114,951,969/336,108
  6. Step 6: Final answer
    x = 806,630.46

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.