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Finding the Third Proportional to 289,253 and 622,956

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Solution

The third proportional to 289,253 and 622,956 is: 1,341,642.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,253 : 622,956 = 622,956 : x
  2. Step 2: Convert to fraction form
    289,253/622,956 = 622,956/x
  3. Step 3: Cross multiply
    289,253x = 622,956 × 622,956
  4. Step 4: Simplify right side
    289,253x = 388,074,177,936
  5. Step 5: Solve for x
    x = 388,074,177,936/289,253
  6. Step 6: Final answer
    x = 1,341,642.71

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.