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Finding the Fourth Proportional to 799.32, 1,102.60 and 550.63

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Solution

The fourth proportional to 799.32, 1,102.60 and 550.63 is: 759.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.32 : 1,102.60 = 550.63 : x
  2. Step 2: Convert to fraction form
    799.32/1,102.60 = 550.63/x
  3. Step 3: Cross multiply
    799.32x = 1,102.60 × 550.63
  4. Step 4: Simplify right side
    799.32x = 607,116.37
  5. Step 5: Solve for x
    x = 607,116.37/799.32
  6. Step 6: Final answer
    x = 759.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.