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Finding the Third Proportional to 551,888 and 843,872

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Solution

The third proportional to 551,888 and 843,872 is: 1,290,334.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,888 : 843,872 = 843,872 : x
  2. Step 2: Convert to fraction form
    551,888/843,872 = 843,872/x
  3. Step 3: Cross multiply
    551,888x = 843,872 × 843,872
  4. Step 4: Simplify right side
    551,888x = 712,119,952,384
  5. Step 5: Solve for x
    x = 712,119,952,384/551,888
  6. Step 6: Final answer
    x = 1,290,334.18

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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.