Home / 1,081,163.66-1,491,757.83-645,496.10

Finding the Fourth Proportional to 1,081,163.66, 1,491,757.83 and 645,496.10

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Solution

The fourth proportional to 1,081,163.66, 1,491,757.83 and 645,496.10 is: 890,636.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,163.66 : 1,491,757.83 = 645,496.10 : x
  2. Step 2: Convert to fraction form
    1,081,163.66/1,491,757.83 = 645,496.10/x
  3. Step 3: Cross multiply
    1,081,163.66x = 1,491,757.83 × 645,496.10
  4. Step 4: Simplify right side
    1,081,163.66x = 962,923,861,409.46
  5. Step 5: Solve for x
    x = 962,923,861,409.46/1,081,163.66
  6. Step 6: Final answer
    x = 890,636.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.