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Finding the Fourth Proportional to 501,449.38, 691,958.64 and 275,094.88

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Solution

The fourth proportional to 501,449.38, 691,958.64 and 275,094.88 is: 379,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,449.38 : 691,958.64 = 275,094.88 : x
  2. Step 2: Convert to fraction form
    501,449.38/691,958.64 = 275,094.88/x
  3. Step 3: Cross multiply
    501,449.38x = 691,958.64 × 275,094.88
  4. Step 4: Simplify right side
    501,449.38x = 190,354,279,035.76
  5. Step 5: Solve for x
    x = 190,354,279,035.76/501,449.38
  6. Step 6: Final answer
    x = 379,608.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.