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Finding the Fourth Proportional to 799.24, 1,190.60 and 775.06

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Solution

The fourth proportional to 799.24, 1,190.60 and 775.06 is: 1,154.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.24 : 1,190.60 = 775.06 : x
  2. Step 2: Convert to fraction form
    799.24/1,190.60 = 775.06/x
  3. Step 3: Cross multiply
    799.24x = 1,190.60 × 775.06
  4. Step 4: Simplify right side
    799.24x = 922,786.44
  5. Step 5: Solve for x
    x = 922,786.44/799.24
  6. Step 6: Final answer
    x = 1,154.58

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.