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Finding the Third Proportional to 869,334 and 1,278,855

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Solution

The third proportional to 869,334 and 1,278,855 is: 1,881,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,334 : 1,278,855 = 1,278,855 : x
  2. Step 2: Convert to fraction form
    869,334/1,278,855 = 1,278,855/x
  3. Step 3: Cross multiply
    869,334x = 1,278,855 × 1,278,855
  4. Step 4: Simplify right side
    869,334x = 1,635,470,111,025
  5. Step 5: Solve for x
    x = 1,635,470,111,025/869,334
  6. Step 6: Final answer
    x = 1,881,290.86

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.