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Finding the Fourth Proportional to 604.27, 834.63 and 438.22

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Solution

The fourth proportional to 604.27, 834.63 and 438.22 is: 605.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.27 : 834.63 = 438.22 : x
  2. Step 2: Convert to fraction form
    604.27/834.63 = 438.22/x
  3. Step 3: Cross multiply
    604.27x = 834.63 × 438.22
  4. Step 4: Simplify right side
    604.27x = 365,751.56
  5. Step 5: Solve for x
    x = 365,751.56/604.27
  6. Step 6: Final answer
    x = 605.28

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1.5x scale

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.