Home / 814,772.66-1,222,205.67-215,718.23

Finding the Fourth Proportional to 814,772.66, 1,222,205.67 and 215,718.23

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Solution

The fourth proportional to 814,772.66, 1,222,205.67 and 215,718.23 is: 323,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,772.66 : 1,222,205.67 = 215,718.23 : x
  2. Step 2: Convert to fraction form
    814,772.66/1,222,205.67 = 215,718.23/x
  3. Step 3: Cross multiply
    814,772.66x = 1,222,205.67 × 215,718.23
  4. Step 4: Simplify right side
    814,772.66x = 263,652,040,008.97
  5. Step 5: Solve for x
    x = 263,652,040,008.97/814,772.66
  6. Step 6: Final answer
    x = 323,589.70

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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.