Home / 660,716.46-991,140.03-211,324.41

Finding the Fourth Proportional to 660,716.46, 991,140.03 and 211,324.41

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Solution

The fourth proportional to 660,716.46, 991,140.03 and 211,324.41 is: 317,007.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,716.46 : 991,140.03 = 211,324.41 : x
  2. Step 2: Convert to fraction form
    660,716.46/991,140.03 = 211,324.41/x
  3. Step 3: Cross multiply
    660,716.46x = 991,140.03 × 211,324.41
  4. Step 4: Simplify right side
    660,716.46x = 209,452,082,067.13
  5. Step 5: Solve for x
    x = 209,452,082,067.13/660,716.46
  6. Step 6: Final answer
    x = 317,007.51

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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.