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Finding the Fourth Proportional to 587.28, 879.64 and 370.48

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Solution

The fourth proportional to 587.28, 879.64 and 370.48 is: 554.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.28 : 879.64 = 370.48 : x
  2. Step 2: Convert to fraction form
    587.28/879.64 = 370.48/x
  3. Step 3: Cross multiply
    587.28x = 879.64 × 370.48
  4. Step 4: Simplify right side
    587.28x = 325,889.03
  5. Step 5: Solve for x
    x = 325,889.03/587.28
  6. Step 6: Final answer
    x = 554.91

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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.