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Finding the Fourth Proportional to 888.06, 1,224.60 and 589.38

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Solution

The fourth proportional to 888.06, 1,224.60 and 589.38 is: 812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    888.06 : 1,224.60 = 589.38 : x
  2. Step 2: Convert to fraction form
    888.06/1,224.60 = 589.38/x
  3. Step 3: Cross multiply
    888.06x = 1,224.60 × 589.38
  4. Step 4: Simplify right side
    888.06x = 721,754.75
  5. Step 5: Solve for x
    x = 721,754.75/888.06
  6. Step 6: Final answer
    x = 812.73

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Double scale
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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.