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Finding the Third Proportional to 679,184 and 919,131

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Solution

The third proportional to 679,184 and 919,131 is: 1,243,848.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,184 : 919,131 = 919,131 : x
  2. Step 2: Convert to fraction form
    679,184/919,131 = 919,131/x
  3. Step 3: Cross multiply
    679,184x = 919,131 × 919,131
  4. Step 4: Simplify right side
    679,184x = 844,801,795,161
  5. Step 5: Solve for x
    x = 844,801,795,161/679,184
  6. Step 6: Final answer
    x = 1,243,848.20

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.