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Finding the Fourth Proportional to 799.35, 1,103.25 and 467.81

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Solution

The fourth proportional to 799.35, 1,103.25 and 467.81 is: 645.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    799.35 : 1,103.25 = 467.81 : x
  2. Step 2: Convert to fraction form
    799.35/1,103.25 = 467.81/x
  3. Step 3: Cross multiply
    799.35x = 1,103.25 × 467.81
  4. Step 4: Simplify right side
    799.35x = 516,111.76
  5. Step 5: Solve for x
    x = 516,111.76/799.35
  6. Step 6: Final answer
    x = 645.67

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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.