Home / 809,078.91-1,213,260.90-303,285.11

Finding the Fourth Proportional to 809,078.91, 1,213,260.90 and 303,285.11

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Solution

The fourth proportional to 809,078.91, 1,213,260.90 and 303,285.11 is: 454,793.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,078.91 : 1,213,260.90 = 303,285.11 : x
  2. Step 2: Convert to fraction form
    809,078.91/1,213,260.90 = 303,285.11/x
  3. Step 3: Cross multiply
    809,078.91x = 1,213,260.90 × 303,285.11
  4. Step 4: Simplify right side
    809,078.91x = 367,963,968,548.35
  5. Step 5: Solve for x
    x = 367,963,968,548.35/809,078.91
  6. Step 6: Final answer
    x = 454,793.67

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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.