Home / 810,059.11-1,215,084.27-330,285.04

Finding the Fourth Proportional to 810,059.11, 1,215,084.27 and 330,285.04

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Solution

The fourth proportional to 810,059.11, 1,215,084.27 and 330,285.04 is: 495,425.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,059.11 : 1,215,084.27 = 330,285.04 : x
  2. Step 2: Convert to fraction form
    810,059.11/1,215,084.27 = 330,285.04/x
  3. Step 3: Cross multiply
    810,059.11x = 1,215,084.27 × 330,285.04
  4. Step 4: Simplify right side
    810,059.11x = 401,324,162,981.65
  5. Step 5: Solve for x
    x = 401,324,162,981.65/810,059.11
  6. Step 6: Final answer
    x = 495,425.78

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1.5x scale

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.