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Finding the Fourth Proportional to 501,244.56, 691,718.40 and 274,891.68

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Solution

The fourth proportional to 501,244.56, 691,718.40 and 274,891.68 is: 379,351.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,244.56 : 691,718.40 = 274,891.68 : x
  2. Step 2: Convert to fraction form
    501,244.56/691,718.40 = 274,891.68/x
  3. Step 3: Cross multiply
    501,244.56x = 691,718.40 × 274,891.68
  4. Step 4: Simplify right side
    501,244.56x = 190,147,633,062.91
  5. Step 5: Solve for x
    x = 190,147,633,062.91/501,244.56
  6. Step 6: Final answer
    x = 379,351.02

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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.