Home / 814,093.38-1,221,198.53-215,048.70

Finding the Fourth Proportional to 814,093.38, 1,221,198.53 and 215,048.70

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Solution

The fourth proportional to 814,093.38, 1,221,198.53 and 215,048.70 is: 322,588.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,093.38 : 1,221,198.53 = 215,048.70 : x
  2. Step 2: Convert to fraction form
    814,093.38/1,221,198.53 = 215,048.70/x
  3. Step 3: Cross multiply
    814,093.38x = 1,221,198.53 × 215,048.70
  4. Step 4: Simplify right side
    814,093.38x = 262,617,155,243.17
  5. Step 5: Solve for x
    x = 262,617,155,243.17/814,093.38
  6. Step 6: Final answer
    x = 322,588.49

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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.