Home / 814,062.30-1,221,151.76-215,017.49

Finding the Fourth Proportional to 814,062.30, 1,221,151.76 and 215,017.49

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Solution

The fourth proportional to 814,062.30, 1,221,151.76 and 215,017.49 is: 322,541.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,062.30 : 1,221,151.76 = 215,017.49 : x
  2. Step 2: Convert to fraction form
    814,062.30/1,221,151.76 = 215,017.49/x
  3. Step 3: Cross multiply
    814,062.30x = 1,221,151.76 × 215,017.49
  4. Step 4: Simplify right side
    814,062.30x = 262,568,979,163.44
  5. Step 5: Solve for x
    x = 262,568,979,163.44/814,062.30
  6. Step 6: Final answer
    x = 322,541.63

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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.