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Finding the Fourth Proportional to 816.03, 1,224.06 and 654.75

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Solution

The fourth proportional to 816.03, 1,224.06 and 654.75 is: 982.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    816.03 : 1,224.06 = 654.75 : x
  2. Step 2: Convert to fraction form
    816.03/1,224.06 = 654.75/x
  3. Step 3: Cross multiply
    816.03x = 1,224.06 × 654.75
  4. Step 4: Simplify right side
    816.03x = 801,453.29
  5. Step 5: Solve for x
    x = 801,453.29/816.03
  6. Step 6: Final answer
    x = 982.14

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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.