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Finding the Fourth Proportional to 579.63, 868.83 and 374.34

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Solution

The fourth proportional to 579.63, 868.83 and 374.34 is: 561.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.63 : 868.83 = 374.34 : x
  2. Step 2: Convert to fraction form
    579.63/868.83 = 374.34/x
  3. Step 3: Cross multiply
    579.63x = 868.83 × 374.34
  4. Step 4: Simplify right side
    579.63x = 325,237.82
  5. Step 5: Solve for x
    x = 325,237.82/579.63
  6. Step 6: Final answer
    x = 561.11

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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.