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Finding the Fourth Proportional to 888.48, 1,334.22 and 742.08

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Solution

The fourth proportional to 888.48, 1,334.22 and 742.08 is: 1,114.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.48 : 1,334.22 = 742.08 : x
  2. Step 2: Convert to fraction form
    888.48/1,334.22 = 742.08/x
  3. Step 3: Cross multiply
    888.48x = 1,334.22 × 742.08
  4. Step 4: Simplify right side
    888.48x = 990,097.98
  5. Step 5: Solve for x
    x = 990,097.98/888.48
  6. Step 6: Final answer
    x = 1,114.37

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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.