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Finding the Fourth Proportional to 1,174.66, 1,760.46 and 480.53

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Solution

The fourth proportional to 1,174.66, 1,760.46 and 480.53 is: 720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,174.66 : 1,760.46 = 480.53 : x
  2. Step 2: Convert to fraction form
    1,174.66/1,760.46 = 480.53/x
  3. Step 3: Cross multiply
    1,174.66x = 1,760.46 × 480.53
  4. Step 4: Simplify right side
    1,174.66x = 845,958.24
  5. Step 5: Solve for x
    x = 845,958.24/1,174.66
  6. Step 6: Final answer
    x = 720.17

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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.