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Finding the Fourth Proportional to 888.89, 1,227.07 and 652.42

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Solution

The fourth proportional to 888.89, 1,227.07 and 652.42 is: 900.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.89 : 1,227.07 = 652.42 : x
  2. Step 2: Convert to fraction form
    888.89/1,227.07 = 652.42/x
  3. Step 3: Cross multiply
    888.89x = 1,227.07 × 652.42
  4. Step 4: Simplify right side
    888.89x = 800,565.01
  5. Step 5: Solve for x
    x = 800,565.01/888.89
  6. Step 6: Final answer
    x = 900.63

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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.