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Finding the Fourth Proportional to 604.96, 834.99 and 395.39

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Solution

The fourth proportional to 604.96, 834.99 and 395.39 is: 545.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.96 : 834.99 = 395.39 : x
  2. Step 2: Convert to fraction form
    604.96/834.99 = 395.39/x
  3. Step 3: Cross multiply
    604.96x = 834.99 × 395.39
  4. Step 4: Simplify right side
    604.96x = 330,146.70
  5. Step 5: Solve for x
    x = 330,146.70/604.96
  6. Step 6: Final answer
    x = 545.73

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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.