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Finding the Fourth Proportional to 1,232.41, 1,848.91 and 399.44

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Solution

The fourth proportional to 1,232.41, 1,848.91 and 399.44 is: 599.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,232.41 : 1,848.91 = 399.44 : x
  2. Step 2: Convert to fraction form
    1,232.41/1,848.91 = 399.44/x
  3. Step 3: Cross multiply
    1,232.41x = 1,848.91 × 399.44
  4. Step 4: Simplify right side
    1,232.41x = 738,531.49
  5. Step 5: Solve for x
    x = 738,531.49/1,232.41
  6. Step 6: Final answer
    x = 599.26

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.