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Finding the Fourth Proportional to 508,449.44, 701,658.29 and 279,010.56

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Solution

The fourth proportional to 508,449.44, 701,658.29 and 279,010.56 is: 385,033.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,449.44 : 701,658.29 = 279,010.56 : x
  2. Step 2: Convert to fraction form
    508,449.44/701,658.29 = 279,010.56/x
  3. Step 3: Cross multiply
    508,449.44x = 701,658.29 × 279,010.56
  4. Step 4: Simplify right side
    508,449.44x = 195,770,072,421.54
  5. Step 5: Solve for x
    x = 195,770,072,421.54/508,449.44
  6. Step 6: Final answer
    x = 385,033.51

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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.