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Finding the Third Proportional to 301,707 and 628,221.75

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Solution

The third proportional to 301,707 and 628,221.75 is: 1,308,098.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,707 : 628,221.75 = 628,221.75 : x
  2. Step 2: Convert to fraction form
    301,707/628,221.75 = 628,221.75/x
  3. Step 3: Cross multiply
    301,707x = 628,221.75 × 628,221.75
  4. Step 4: Simplify right side
    301,707x = 394,662,567,173.06
  5. Step 5: Solve for x
    x = 394,662,567,173.06/301,707
  6. Step 6: Final answer
    x = 1,308,098.81

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.