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Finding the Fourth Proportional to 587.17, 879.54 and 369.69

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Solution

The fourth proportional to 587.17, 879.54 and 369.69 is: 553.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.17 : 879.54 = 369.69 : x
  2. Step 2: Convert to fraction form
    587.17/879.54 = 369.69/x
  3. Step 3: Cross multiply
    587.17x = 879.54 × 369.69
  4. Step 4: Simplify right side
    587.17x = 325,157.14
  5. Step 5: Solve for x
    x = 325,157.14/587.17
  6. Step 6: Final answer
    x = 553.77

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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.