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Finding the Fourth Proportional to 604.42, 833.76 and 438.88

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Solution

The fourth proportional to 604.42, 833.76 and 438.88 is: 605.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.42 : 833.76 = 438.88 : x
  2. Step 2: Convert to fraction form
    604.42/833.76 = 438.88/x
  3. Step 3: Cross multiply
    604.42x = 833.76 × 438.88
  4. Step 4: Simplify right side
    604.42x = 365,920.59
  5. Step 5: Solve for x
    x = 365,920.59/604.42
  6. Step 6: Final answer
    x = 605.41

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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.