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Finding the Fourth Proportional to 844.02, 1,163.57 and 563.76

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Solution

The fourth proportional to 844.02, 1,163.57 and 563.76 is: 777.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    844.02 : 1,163.57 = 563.76 : x
  2. Step 2: Convert to fraction form
    844.02/1,163.57 = 563.76/x
  3. Step 3: Cross multiply
    844.02x = 1,163.57 × 563.76
  4. Step 4: Simplify right side
    844.02x = 655,971.40
  5. Step 5: Solve for x
    x = 655,971.40/844.02
  6. Step 6: Final answer
    x = 777.20

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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.