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Finding the Fourth Proportional to 979.58, 1,467.41 and 608.27

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Solution

The fourth proportional to 979.58, 1,467.41 and 608.27 is: 911.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    979.58 : 1,467.41 = 608.27 : x
  2. Step 2: Convert to fraction form
    979.58/1,467.41 = 608.27/x
  3. Step 3: Cross multiply
    979.58x = 1,467.41 × 608.27
  4. Step 4: Simplify right side
    979.58x = 892,571.10
  5. Step 5: Solve for x
    x = 892,571.10/979.58
  6. Step 6: Final answer
    x = 911.18

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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.