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Finding the Third Proportional to 291,622 and 456,874

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Solution

The third proportional to 291,622 and 456,874 is: 715,768.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,622 : 456,874 = 456,874 : x
  2. Step 2: Convert to fraction form
    291,622/456,874 = 456,874/x
  3. Step 3: Cross multiply
    291,622x = 456,874 × 456,874
  4. Step 4: Simplify right side
    291,622x = 208,733,851,876
  5. Step 5: Solve for x
    x = 208,733,851,876/291,622
  6. Step 6: Final answer
    x = 715,768.54

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.