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Finding the Fourth Proportional to 888.42, 1,226.04 and 495.46

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Solution

The fourth proportional to 888.42, 1,226.04 and 495.46 is: 683.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.42 : 1,226.04 = 495.46 : x
  2. Step 2: Convert to fraction form
    888.42/1,226.04 = 495.46/x
  3. Step 3: Cross multiply
    888.42x = 1,226.04 × 495.46
  4. Step 4: Simplify right side
    888.42x = 607,453.78
  5. Step 5: Solve for x
    x = 607,453.78/888.42
  6. Step 6: Final answer
    x = 683.75

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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.