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Finding the Third Proportional to 375,278 and 552,990

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Solution

The third proportional to 375,278 and 552,990 is: 814,857.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,278 : 552,990 = 552,990 : x
  2. Step 2: Convert to fraction form
    375,278/552,990 = 552,990/x
  3. Step 3: Cross multiply
    375,278x = 552,990 × 552,990
  4. Step 4: Simplify right side
    375,278x = 305,797,940,100
  5. Step 5: Solve for x
    x = 305,797,940,100/375,278
  6. Step 6: Final answer
    x = 814,857.09

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These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.