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Finding the Third Proportional to 551,169 and 789,843

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Solution

The third proportional to 551,169 and 789,843 is: 1,131,870.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,169 : 789,843 = 789,843 : x
  2. Step 2: Convert to fraction form
    551,169/789,843 = 789,843/x
  3. Step 3: Cross multiply
    551,169x = 789,843 × 789,843
  4. Step 4: Simplify right side
    551,169x = 623,851,964,649
  5. Step 5: Solve for x
    x = 623,851,964,649/551,169
  6. Step 6: Final answer
    x = 1,131,870.56

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.