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Finding the Fourth Proportional to 923.44, 1,385.49 and 375.94

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Solution

The fourth proportional to 923.44, 1,385.49 and 375.94 is: 564.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    923.44 : 1,385.49 = 375.94 : x
  2. Step 2: Convert to fraction form
    923.44/1,385.49 = 375.94/x
  3. Step 3: Cross multiply
    923.44x = 1,385.49 × 375.94
  4. Step 4: Simplify right side
    923.44x = 520,861.11
  5. Step 5: Solve for x
    x = 520,861.11/923.44
  6. Step 6: Final answer
    x = 564.04

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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.