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Finding the Fourth Proportional to 571.76, 789.04 and 350.68

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Solution

The fourth proportional to 571.76, 789.04 and 350.68 is: 483.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.76 : 789.04 = 350.68 : x
  2. Step 2: Convert to fraction form
    571.76/789.04 = 350.68/x
  3. Step 3: Cross multiply
    571.76x = 789.04 × 350.68
  4. Step 4: Simplify right side
    571.76x = 276,700.49
  5. Step 5: Solve for x
    x = 276,700.49/571.76
  6. Step 6: Final answer
    x = 483.95

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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.