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Finding the Third Proportional to 808,326 and 1,268,121

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Solution

The third proportional to 808,326 and 1,268,121 is: 1,989,458.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,326 : 1,268,121 = 1,268,121 : x
  2. Step 2: Convert to fraction form
    808,326/1,268,121 = 1,268,121/x
  3. Step 3: Cross multiply
    808,326x = 1,268,121 × 1,268,121
  4. Step 4: Simplify right side
    808,326x = 1,608,130,870,641
  5. Step 5: Solve for x
    x = 1,608,130,870,641/808,326
  6. Step 6: Final answer
    x = 1,989,458.30

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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.