Home / 800,380.49-1,200,572.76-327,065.90

Finding the Fourth Proportional to 800,380.49, 1,200,572.76 and 327,065.90

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Solution

The fourth proportional to 800,380.49, 1,200,572.76 and 327,065.90 is: 490,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,380.49 : 1,200,572.76 = 327,065.90 : x
  2. Step 2: Convert to fraction form
    800,380.49/1,200,572.76 = 327,065.90/x
  3. Step 3: Cross multiply
    800,380.49x = 1,200,572.76 × 327,065.90
  4. Step 4: Simplify right side
    800,380.49x = 392,666,404,262.02
  5. Step 5: Solve for x
    x = 392,666,404,262.02/800,380.49
  6. Step 6: Final answer
    x = 490,599.67

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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.