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Finding the Fourth Proportional to 571.69, 789.31 and 350.86

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Solution

The fourth proportional to 571.69, 789.31 and 350.86 is: 484.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.69 : 789.31 = 350.86 : x
  2. Step 2: Convert to fraction form
    571.69/789.31 = 350.86/x
  3. Step 3: Cross multiply
    571.69x = 789.31 × 350.86
  4. Step 4: Simplify right side
    571.69x = 276,937.31
  5. Step 5: Solve for x
    x = 276,937.31/571.69
  6. Step 6: Final answer
    x = 484.42

Related Problems

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Double scale
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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.