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Finding the Fourth Proportional to 985.44, 1,479.60 and 600.96

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Solution

The fourth proportional to 985.44, 1,479.60 and 600.96 is: 902.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    985.44 : 1,479.60 = 600.96 : x
  2. Step 2: Convert to fraction form
    985.44/1,479.60 = 600.96/x
  3. Step 3: Cross multiply
    985.44x = 1,479.60 × 600.96
  4. Step 4: Simplify right side
    985.44x = 889,180.42
  5. Step 5: Solve for x
    x = 889,180.42/985.44
  6. Step 6: Final answer
    x = 902.32

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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.