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Finding the Fourth Proportional to 579.48, 869.44 and 374.44

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Solution

The fourth proportional to 579.48, 869.44 and 374.44 is: 561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.48 : 869.44 = 374.44 : x
  2. Step 2: Convert to fraction form
    579.48/869.44 = 374.44/x
  3. Step 3: Cross multiply
    579.48x = 869.44 × 374.44
  4. Step 4: Simplify right side
    579.48x = 325,553.11
  5. Step 5: Solve for x
    x = 325,553.11/579.48
  6. Step 6: Final answer
    x = 561.80

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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.