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Finding the Third Proportional to 3,478,991.25 and 5,308,469.25

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Solution

The third proportional to 3,478,991.25 and 5,308,469.25 is: 8,100,004.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,478,991.25 : 5,308,469.25 = 5,308,469.25 : x
  2. Step 2: Convert to fraction form
    3,478,991.25/5,308,469.25 = 5,308,469.25/x
  3. Step 3: Cross multiply
    3,478,991.25x = 5,308,469.25 × 5,308,469.25
  4. Step 4: Simplify right side
    3,478,991.25x = 28,179,845,778,195.56
  5. Step 5: Solve for x
    x = 28,179,845,778,195.56/3,478,991.25
  6. Step 6: Final answer
    x = 8,100,004.79

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.