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Finding the Third Proportional to 444,665 and 687,815

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Solution

The third proportional to 444,665 and 687,815 is: 1,063,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,665 : 687,815 = 687,815 : x
  2. Step 2: Convert to fraction form
    444,665/687,815 = 687,815/x
  3. Step 3: Cross multiply
    444,665x = 687,815 × 687,815
  4. Step 4: Simplify right side
    444,665x = 473,089,474,225
  5. Step 5: Solve for x
    x = 473,089,474,225/444,665
  6. Step 6: Final answer
    x = 1,063,923.35

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.