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Finding the Fourth Proportional to 587.11, 883.61 and 441.61

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Solution

The fourth proportional to 587.11, 883.61 and 441.61 is: 664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    587.11 : 883.61 = 441.61 : x
  2. Step 2: Convert to fraction form
    587.11/883.61 = 441.61/x
  3. Step 3: Cross multiply
    587.11x = 883.61 × 441.61
  4. Step 4: Simplify right side
    587.11x = 390,216.33
  5. Step 5: Solve for x
    x = 390,216.33/587.11
  6. Step 6: Final answer
    x = 664.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.