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Finding the Third Proportional to 310,620 and 672,018

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Solution

The third proportional to 310,620 and 672,018 is: 1,453,892.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,620 : 672,018 = 672,018 : x
  2. Step 2: Convert to fraction form
    310,620/672,018 = 672,018/x
  3. Step 3: Cross multiply
    310,620x = 672,018 × 672,018
  4. Step 4: Simplify right side
    310,620x = 451,608,192,324
  5. Step 5: Solve for x
    x = 451,608,192,324/310,620
  6. Step 6: Final answer
    x = 1,453,892.83

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.