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Finding the Fourth Proportional to 775.41, 1,161.49 and 567.03

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Solution

The fourth proportional to 775.41, 1,161.49 and 567.03 is: 849.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    775.41 : 1,161.49 = 567.03 : x
  2. Step 2: Convert to fraction form
    775.41/1,161.49 = 567.03/x
  3. Step 3: Cross multiply
    775.41x = 1,161.49 × 567.03
  4. Step 4: Simplify right side
    775.41x = 658,599.67
  5. Step 5: Solve for x
    x = 658,599.67/775.41
  6. Step 6: Final answer
    x = 849.36

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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.