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Finding the Fourth Proportional to 604.67, 834.54 and 383.72

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Solution

The fourth proportional to 604.67, 834.54 and 383.72 is: 529.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.67 : 834.54 = 383.72 : x
  2. Step 2: Convert to fraction form
    604.67/834.54 = 383.72/x
  3. Step 3: Cross multiply
    604.67x = 834.54 × 383.72
  4. Step 4: Simplify right side
    604.67x = 320,229.69
  5. Step 5: Solve for x
    x = 320,229.69/604.67
  6. Step 6: Final answer
    x = 529.59

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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.