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Finding the Fourth Proportional to 618.48, 926.28 and 541.44

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Solution

The fourth proportional to 618.48, 926.28 and 541.44 is: 810.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    618.48 : 926.28 = 541.44 : x
  2. Step 2: Convert to fraction form
    618.48/926.28 = 541.44/x
  3. Step 3: Cross multiply
    618.48x = 926.28 × 541.44
  4. Step 4: Simplify right side
    618.48x = 501,525.04
  5. Step 5: Solve for x
    x = 501,525.04/618.48
  6. Step 6: Final answer
    x = 810.90

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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.