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Finding the Third Proportional to 318,892 and 670,832

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Solution

The third proportional to 318,892 and 670,832 is: 1,411,184.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,892 : 670,832 = 670,832 : x
  2. Step 2: Convert to fraction form
    318,892/670,832 = 670,832/x
  3. Step 3: Cross multiply
    318,892x = 670,832 × 670,832
  4. Step 4: Simplify right side
    318,892x = 450,015,572,224
  5. Step 5: Solve for x
    x = 450,015,572,224/318,892
  6. Step 6: Final answer
    x = 1,411,184.89

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Why These Related Problems?

These problems maintain the same ratio (2.10) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.