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Finding the Fourth Proportional to 888.37, 1,331.44 and 683.71

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Solution

The fourth proportional to 888.37, 1,331.44 and 683.71 is: 1,024.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.37 : 1,331.44 = 683.71 : x
  2. Step 2: Convert to fraction form
    888.37/1,331.44 = 683.71/x
  3. Step 3: Cross multiply
    888.37x = 1,331.44 × 683.71
  4. Step 4: Simplify right side
    888.37x = 910,313.80
  5. Step 5: Solve for x
    x = 910,313.80/888.37
  6. Step 6: Final answer
    x = 1,024.70

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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.