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Finding the Fourth Proportional to 794.02, 1,190.67 and 382.39

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Solution

The fourth proportional to 794.02, 1,190.67 and 382.39 is: 573.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    794.02 : 1,190.67 = 382.39 : x
  2. Step 2: Convert to fraction form
    794.02/1,190.67 = 382.39/x
  3. Step 3: Cross multiply
    794.02x = 1,190.67 × 382.39
  4. Step 4: Simplify right side
    794.02x = 455,300.30
  5. Step 5: Solve for x
    x = 455,300.30/794.02
  6. Step 6: Final answer
    x = 573.41

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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.