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Finding the Fourth Proportional to 1,173.79, 1,760.98 and 480.23

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Solution

The fourth proportional to 1,173.79, 1,760.98 and 480.23 is: 720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,173.79 : 1,760.98 = 480.23 : x
  2. Step 2: Convert to fraction form
    1,173.79/1,760.98 = 480.23/x
  3. Step 3: Cross multiply
    1,173.79x = 1,760.98 × 480.23
  4. Step 4: Simplify right side
    1,173.79x = 845,666.62
  5. Step 5: Solve for x
    x = 845,666.62/1,173.79
  6. Step 6: Final answer
    x = 720.46

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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.