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Finding the Fourth Proportional to 529.11, 789.95 and 477.27

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Solution

The fourth proportional to 529.11, 789.95 and 477.27 is: 712.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.11 : 789.95 = 477.27 : x
  2. Step 2: Convert to fraction form
    529.11/789.95 = 477.27/x
  3. Step 3: Cross multiply
    529.11x = 789.95 × 477.27
  4. Step 4: Simplify right side
    529.11x = 377,019.44
  5. Step 5: Solve for x
    x = 377,019.44/529.11
  6. Step 6: Final answer
    x = 712.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.