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Finding the Fourth Proportional to 888.06, 1,226.62 and 627.24

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Solution

The fourth proportional to 888.06, 1,226.62 and 627.24 is: 866.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.06 : 1,226.62 = 627.24 : x
  2. Step 2: Convert to fraction form
    888.06/1,226.62 = 627.24/x
  3. Step 3: Cross multiply
    888.06x = 1,226.62 × 627.24
  4. Step 4: Simplify right side
    888.06x = 769,385.13
  5. Step 5: Solve for x
    x = 769,385.13/888.06
  6. Step 6: Final answer
    x = 866.37

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1.5x scale

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.