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Finding the Fourth Proportional to 1,119.53, 1,679.76 and 599.39

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Solution

The fourth proportional to 1,119.53, 1,679.76 and 599.39 is: 899.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119.53 : 1,679.76 = 599.39 : x
  2. Step 2: Convert to fraction form
    1,119.53/1,679.76 = 599.39/x
  3. Step 3: Cross multiply
    1,119.53x = 1,679.76 × 599.39
  4. Step 4: Simplify right side
    1,119.53x = 1,006,835.55
  5. Step 5: Solve for x
    x = 1,006,835.55/1,119.53
  6. Step 6: Final answer
    x = 899.34

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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.