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Finding the Fourth Proportional to 579.62, 869.55 and 332.94

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Solution

The fourth proportional to 579.62, 869.55 and 332.94 is: 499.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.62 : 869.55 = 332.94 : x
  2. Step 2: Convert to fraction form
    579.62/869.55 = 332.94/x
  3. Step 3: Cross multiply
    579.62x = 869.55 × 332.94
  4. Step 4: Simplify right side
    579.62x = 289,507.98
  5. Step 5: Solve for x
    x = 289,507.98/579.62
  6. Step 6: Final answer
    x = 499.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.