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Finding the Fourth Proportional to 799.05, 1,102.61 and 589.34

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Solution

The fourth proportional to 799.05, 1,102.61 and 589.34 is: 813.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.05 : 1,102.61 = 589.34 : x
  2. Step 2: Convert to fraction form
    799.05/1,102.61 = 589.34/x
  3. Step 3: Cross multiply
    799.05x = 1,102.61 × 589.34
  4. Step 4: Simplify right side
    799.05x = 649,803.72
  5. Step 5: Solve for x
    x = 649,803.72/799.05
  6. Step 6: Final answer
    x = 813.23

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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.