Home / 763,909.96-1,145,922.78-231,474.76

Finding the Fourth Proportional to 763,909.96, 1,145,922.78 and 231,474.76

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Solution

The fourth proportional to 763,909.96, 1,145,922.78 and 231,474.76 is: 347,229.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,909.96 : 1,145,922.78 = 231,474.76 : x
  2. Step 2: Convert to fraction form
    763,909.96/1,145,922.78 = 231,474.76/x
  3. Step 3: Cross multiply
    763,909.96x = 1,145,922.78 × 231,474.76
  4. Step 4: Simplify right side
    763,909.96x = 265,252,200,479.03
  5. Step 5: Solve for x
    x = 265,252,200,479.03/763,909.96
  6. Step 6: Final answer
    x = 347,229.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.