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Finding the Fourth Proportional to 1,120.60, 1,679.83 and 600.28

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Solution

The fourth proportional to 1,120.60, 1,679.83 and 600.28 is: 899.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120.60 : 1,679.83 = 600.28 : x
  2. Step 2: Convert to fraction form
    1,120.60/1,679.83 = 600.28/x
  3. Step 3: Cross multiply
    1,120.60x = 1,679.83 × 600.28
  4. Step 4: Simplify right side
    1,120.60x = 1,008,368.35
  5. Step 5: Solve for x
    x = 1,008,368.35/1,120.60
  6. Step 6: Final answer
    x = 899.85

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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.