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Finding the Fourth Proportional to 888.34, 1,227.45 and 730.84

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Solution

The fourth proportional to 888.34, 1,227.45 and 730.84 is: 1,009.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.34 : 1,227.45 = 730.84 : x
  2. Step 2: Convert to fraction form
    888.34/1,227.45 = 730.84/x
  3. Step 3: Cross multiply
    888.34x = 1,227.45 × 730.84
  4. Step 4: Simplify right side
    888.34x = 897,069.56
  5. Step 5: Solve for x
    x = 897,069.56/888.34
  6. Step 6: Final answer
    x = 1,009.83

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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.