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Finding the Fourth Proportional to 604.43, 834.89 and 499.94

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Solution

The fourth proportional to 604.43, 834.89 and 499.94 is: 690.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.43 : 834.89 = 499.94 : x
  2. Step 2: Convert to fraction form
    604.43/834.89 = 499.94/x
  3. Step 3: Cross multiply
    604.43x = 834.89 × 499.94
  4. Step 4: Simplify right side
    604.43x = 417,391.98
  5. Step 5: Solve for x
    x = 417,391.98/604.43
  6. Step 6: Final answer
    x = 690.56

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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.