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Finding the Fourth Proportional to 1,197.30, 1,795.41 and 427.82

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Solution

The fourth proportional to 1,197.30, 1,795.41 and 427.82 is: 641.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197.30 : 1,795.41 = 427.82 : x
  2. Step 2: Convert to fraction form
    1,197.30/1,795.41 = 427.82/x
  3. Step 3: Cross multiply
    1,197.30x = 1,795.41 × 427.82
  4. Step 4: Simplify right side
    1,197.30x = 768,112.31
  5. Step 5: Solve for x
    x = 768,112.31/1,197.30
  6. Step 6: Final answer
    x = 641.54

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.