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Finding the Fourth Proportional to 604.26, 833.22 and 394.05

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Solution

The fourth proportional to 604.26, 833.22 and 394.05 is: 543.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.26 : 833.22 = 394.05 : x
  2. Step 2: Convert to fraction form
    604.26/833.22 = 394.05/x
  3. Step 3: Cross multiply
    604.26x = 833.22 × 394.05
  4. Step 4: Simplify right side
    604.26x = 328,330.34
  5. Step 5: Solve for x
    x = 328,330.34/604.26
  6. Step 6: Final answer
    x = 543.36

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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.