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Finding the Fourth Proportional to 604.81, 834.96 and 486.82

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Solution

The fourth proportional to 604.81, 834.96 and 486.82 is: 672.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.81 : 834.96 = 486.82 : x
  2. Step 2: Convert to fraction form
    604.81/834.96 = 486.82/x
  3. Step 3: Cross multiply
    604.81x = 834.96 × 486.82
  4. Step 4: Simplify right side
    604.81x = 406,475.23
  5. Step 5: Solve for x
    x = 406,475.23/604.81
  6. Step 6: Final answer
    x = 672.07

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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.