Home / 814,067.47-1,221,159.97-215,020.83

Finding the Fourth Proportional to 814,067.47, 1,221,159.97 and 215,020.83

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Solution

The fourth proportional to 814,067.47, 1,221,159.97 and 215,020.83 is: 322,546.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,067.47 : 1,221,159.97 = 215,020.83 : x
  2. Step 2: Convert to fraction form
    814,067.47/1,221,159.97 = 215,020.83/x
  3. Step 3: Cross multiply
    814,067.47x = 1,221,159.97 × 215,020.83
  4. Step 4: Simplify right side
    814,067.47x = 262,574,828,896.02
  5. Step 5: Solve for x
    x = 262,574,828,896.02/814,067.47
  6. Step 6: Final answer
    x = 322,546.77

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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.