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Finding the Third Proportional to 808,399.31 and 1,268,138.06

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Solution

The third proportional to 808,399.31 and 1,268,138.06 is: 1,989,331.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,399.31 : 1,268,138.06 = 1,268,138.06 : x
  2. Step 2: Convert to fraction form
    808,399.31/1,268,138.06 = 1,268,138.06/x
  3. Step 3: Cross multiply
    808,399.31x = 1,268,138.06 × 1,268,138.06
  4. Step 4: Simplify right side
    808,399.31x = 1,608,174,145,561.25
  5. Step 5: Solve for x
    x = 1,608,174,145,561.25/808,399.31
  6. Step 6: Final answer
    x = 1,989,331.41

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.