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Finding the Fourth Proportional to 571.83, 789.33 and 347.77

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Solution

The fourth proportional to 571.83, 789.33 and 347.77 is: 480.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.83 : 789.33 = 347.77 : x
  2. Step 2: Convert to fraction form
    571.83/789.33 = 347.77/x
  3. Step 3: Cross multiply
    571.83x = 789.33 × 347.77
  4. Step 4: Simplify right side
    571.83x = 274,505.29
  5. Step 5: Solve for x
    x = 274,505.29/571.83
  6. Step 6: Final answer
    x = 480.05

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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.