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Finding the Fourth Proportional to 604.98, 834.96 and 439.74

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Solution

The fourth proportional to 604.98, 834.96 and 439.74 is: 606.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.98 : 834.96 = 439.74 : x
  2. Step 2: Convert to fraction form
    604.98/834.96 = 439.74/x
  3. Step 3: Cross multiply
    604.98x = 834.96 × 439.74
  4. Step 4: Simplify right side
    604.98x = 367,165.31
  5. Step 5: Solve for x
    x = 367,165.31/604.98
  6. Step 6: Final answer
    x = 606.90

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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.