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Finding the Fourth Proportional to 604.71, 834.65 and 394.53

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Solution

The fourth proportional to 604.71, 834.65 and 394.53 is: 544.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.71 : 834.65 = 394.53 : x
  2. Step 2: Convert to fraction form
    604.71/834.65 = 394.53/x
  3. Step 3: Cross multiply
    604.71x = 834.65 × 394.53
  4. Step 4: Simplify right side
    604.71x = 329,292.49
  5. Step 5: Solve for x
    x = 329,292.49/604.71
  6. Step 6: Final answer
    x = 544.55

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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.