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Finding the Third Proportional to 267,240 and 621,444

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Solution

The third proportional to 267,240 and 621,444 is: 1,445,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,240 : 621,444 = 621,444 : x
  2. Step 2: Convert to fraction form
    267,240/621,444 = 621,444/x
  3. Step 3: Cross multiply
    267,240x = 621,444 × 621,444
  4. Step 4: Simplify right side
    267,240x = 386,192,645,136
  5. Step 5: Solve for x
    x = 386,192,645,136/267,240
  6. Step 6: Final answer
    x = 1,445,115.42

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Why These Related Problems?

These problems maintain the same ratio (2.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.