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Finding the Fourth Proportional to 579.24, 865.29 and 569.52

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Solution

The fourth proportional to 579.24, 865.29 and 569.52 is: 850.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    579.24 : 865.29 = 569.52 : x
  2. Step 2: Convert to fraction form
    579.24/865.29 = 569.52/x
  3. Step 3: Cross multiply
    579.24x = 865.29 × 569.52
  4. Step 4: Simplify right side
    579.24x = 492,799.96
  5. Step 5: Solve for x
    x = 492,799.96/579.24
  6. Step 6: Final answer
    x = 850.77

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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.