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Finding the Fourth Proportional to 669.44, 923.87 and 374.74

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Solution

The fourth proportional to 669.44, 923.87 and 374.74 is: 517.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    669.44 : 923.87 = 374.74 : x
  2. Step 2: Convert to fraction form
    669.44/923.87 = 374.74/x
  3. Step 3: Cross multiply
    669.44x = 923.87 × 374.74
  4. Step 4: Simplify right side
    669.44x = 346,209.67
  5. Step 5: Solve for x
    x = 346,209.67/669.44
  6. Step 6: Final answer
    x = 517.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.