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Finding the Fourth Proportional to 605.14, 834.93 and 383.98

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Solution

The fourth proportional to 605.14, 834.93 and 383.98 is: 529.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    605.14 : 834.93 = 383.98 : x
  2. Step 2: Convert to fraction form
    605.14/834.93 = 383.98/x
  3. Step 3: Cross multiply
    605.14x = 834.93 × 383.98
  4. Step 4: Simplify right side
    605.14x = 320,596.42
  5. Step 5: Solve for x
    x = 320,596.42/605.14
  6. Step 6: Final answer
    x = 529.79

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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.