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Finding the Fourth Proportional to 604.94, 834.61 and 383.86

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Solution

The fourth proportional to 604.94, 834.61 and 383.86 is: 529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    604.94 : 834.61 = 383.86 : x
  2. Step 2: Convert to fraction form
    604.94/834.61 = 383.86/x
  3. Step 3: Cross multiply
    604.94x = 834.61 × 383.86
  4. Step 4: Simplify right side
    604.94x = 320,373.39
  5. Step 5: Solve for x
    x = 320,373.39/604.94
  6. Step 6: Final answer
    x = 529.60

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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.