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Finding the Fourth Proportional to 604.72, 834.51 and 328.72

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Solution

The fourth proportional to 604.72, 834.51 and 328.72 is: 453.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.72 : 834.51 = 328.72 : x
  2. Step 2: Convert to fraction form
    604.72/834.51 = 328.72/x
  3. Step 3: Cross multiply
    604.72x = 834.51 × 328.72
  4. Step 4: Simplify right side
    604.72x = 274,319.91
  5. Step 5: Solve for x
    x = 274,319.91/604.72
  6. Step 6: Final answer
    x = 453.63

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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.