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Finding the Fourth Proportional to 569.07, 789.18 and 550.56

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Solution

The fourth proportional to 569.07, 789.18 and 550.56 is: 763.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.07 : 789.18 = 550.56 : x
  2. Step 2: Convert to fraction form
    569.07/789.18 = 550.56/x
  3. Step 3: Cross multiply
    569.07x = 789.18 × 550.56
  4. Step 4: Simplify right side
    569.07x = 434,490.94
  5. Step 5: Solve for x
    x = 434,490.94/569.07
  6. Step 6: Final answer
    x = 763.51

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.