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Finding the Third Proportional to 320,298 and 680,103.75

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Solution

The third proportional to 320,298 and 680,103.75 is: 1,444,096.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,298 : 680,103.75 = 680,103.75 : x
  2. Step 2: Convert to fraction form
    320,298/680,103.75 = 680,103.75/x
  3. Step 3: Cross multiply
    320,298x = 680,103.75 × 680,103.75
  4. Step 4: Simplify right side
    320,298x = 462,541,110,764.06
  5. Step 5: Solve for x
    x = 462,541,110,764.06/320,298
  6. Step 6: Final answer
    x = 1,444,096.16

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.