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Finding the Fourth Proportional to 793.23, 1,088.99 and 727.62

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Solution

The fourth proportional to 793.23, 1,088.99 and 727.62 is: 998.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    793.23 : 1,088.99 = 727.62 : x
  2. Step 2: Convert to fraction form
    793.23/1,088.99 = 727.62/x
  3. Step 3: Cross multiply
    793.23x = 1,088.99 × 727.62
  4. Step 4: Simplify right side
    793.23x = 792,367.27
  5. Step 5: Solve for x
    x = 792,367.27/793.23
  6. Step 6: Final answer
    x = 998.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.