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Finding the Fourth Proportional to 888.76, 1,227.01 and 668.68

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Solution

The fourth proportional to 888.76, 1,227.01 and 668.68 is: 923.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.76 : 1,227.01 = 668.68 : x
  2. Step 2: Convert to fraction form
    888.76/1,227.01 = 668.68/x
  3. Step 3: Cross multiply
    888.76x = 1,227.01 × 668.68
  4. Step 4: Simplify right side
    888.76x = 820,477.05
  5. Step 5: Solve for x
    x = 820,477.05/888.76
  6. Step 6: Final answer
    x = 923.17

Related Problems

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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.