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Finding the Fourth Proportional to 888.14, 1,330.23 and 579.05

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Solution

The fourth proportional to 888.14, 1,330.23 and 579.05 is: 867.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.14 : 1,330.23 = 579.05 : x
  2. Step 2: Convert to fraction form
    888.14/1,330.23 = 579.05/x
  3. Step 3: Cross multiply
    888.14x = 1,330.23 × 579.05
  4. Step 4: Simplify right side
    888.14x = 770,269.68
  5. Step 5: Solve for x
    x = 770,269.68/888.14
  6. Step 6: Final answer
    x = 867.28

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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.