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Finding the Fourth Proportional to 579.44, 868.32 and 362.40

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Solution

The fourth proportional to 579.44, 868.32 and 362.40 is: 543.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.44 : 868.32 = 362.40 : x
  2. Step 2: Convert to fraction form
    579.44/868.32 = 362.40/x
  3. Step 3: Cross multiply
    579.44x = 868.32 × 362.40
  4. Step 4: Simplify right side
    579.44x = 314,679.17
  5. Step 5: Solve for x
    x = 314,679.17/579.44
  6. Step 6: Final answer
    x = 543.07

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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.