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Finding the Fourth Proportional to 884.02, 1,220.18 and 552.73

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Solution

The fourth proportional to 884.02, 1,220.18 and 552.73 is: 762.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    884.02 : 1,220.18 = 552.73 : x
  2. Step 2: Convert to fraction form
    884.02/1,220.18 = 552.73/x
  3. Step 3: Cross multiply
    884.02x = 1,220.18 × 552.73
  4. Step 4: Simplify right side
    884.02x = 674,430.09
  5. Step 5: Solve for x
    x = 674,430.09/884.02
  6. Step 6: Final answer
    x = 762.91

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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.