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Finding the Third Proportional to 321,326 and 705,695

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Solution

The third proportional to 321,326 and 705,695 is: 1,549,844.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,326 : 705,695 = 705,695 : x
  2. Step 2: Convert to fraction form
    321,326/705,695 = 705,695/x
  3. Step 3: Cross multiply
    321,326x = 705,695 × 705,695
  4. Step 4: Simplify right side
    321,326x = 498,005,433,025
  5. Step 5: Solve for x
    x = 498,005,433,025/321,326
  6. Step 6: Final answer
    x = 1,549,844.81

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.