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Finding the Fourth Proportional to 604.88, 833.56 and 438.80

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Solution

The fourth proportional to 604.88, 833.56 and 438.80 is: 604.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.88 : 833.56 = 438.80 : x
  2. Step 2: Convert to fraction form
    604.88/833.56 = 438.80/x
  3. Step 3: Cross multiply
    604.88x = 833.56 × 438.80
  4. Step 4: Simplify right side
    604.88x = 365,766.13
  5. Step 5: Solve for x
    x = 365,766.13/604.88
  6. Step 6: Final answer
    x = 604.69

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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.