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Finding the Fourth Proportional to 893.03, 1,336.80 and 481.14

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Solution

The fourth proportional to 893.03, 1,336.80 and 481.14 is: 720.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    893.03 : 1,336.80 = 481.14 : x
  2. Step 2: Convert to fraction form
    893.03/1,336.80 = 481.14/x
  3. Step 3: Cross multiply
    893.03x = 1,336.80 × 481.14
  4. Step 4: Simplify right side
    893.03x = 643,189.76
  5. Step 5: Solve for x
    x = 643,189.76/893.03
  6. Step 6: Final answer
    x = 720.24

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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.