Home / 800,355.40-1,200,535.15-327,040.76

Finding the Fourth Proportional to 800,355.40, 1,200,535.15 and 327,040.76

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Solution

The fourth proportional to 800,355.40, 1,200,535.15 and 327,040.76 is: 490,561.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,355.40 : 1,200,535.15 = 327,040.76 : x
  2. Step 2: Convert to fraction form
    800,355.40/1,200,535.15 = 327,040.76/x
  3. Step 3: Cross multiply
    800,355.40x = 1,200,535.15 × 327,040.76
  4. Step 4: Simplify right side
    800,355.40x = 392,623,922,986.84
  5. Step 5: Solve for x
    x = 392,623,922,986.84/800,355.40
  6. Step 6: Final answer
    x = 490,561.97

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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.