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Finding the Fourth Proportional to 571.36, 789.04 and 539.04

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Solution

The fourth proportional to 571.36, 789.04 and 539.04 is: 744.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    571.36 : 789.04 = 539.04 : x
  2. Step 2: Convert to fraction form
    571.36/789.04 = 539.04/x
  3. Step 3: Cross multiply
    571.36x = 789.04 × 539.04
  4. Step 4: Simplify right side
    571.36x = 425,324.12
  5. Step 5: Solve for x
    x = 425,324.12/571.36
  6. Step 6: Final answer
    x = 744.41

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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.