Home / 814,789.80-1,222,403.40-726,653.70

Finding the Fourth Proportional to 814,789.80, 1,222,403.40 and 726,653.70

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Solution

The fourth proportional to 814,789.80, 1,222,403.40 and 726,653.70 is: 1,090,175.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,789.80 : 1,222,403.40 = 726,653.70 : x
  2. Step 2: Convert to fraction form
    814,789.80/1,222,403.40 = 726,653.70/x
  3. Step 3: Cross multiply
    814,789.80x = 1,222,403.40 × 726,653.70
  4. Step 4: Simplify right side
    814,789.80x = 888,263,953,502.58
  5. Step 5: Solve for x
    x = 888,263,953,502.58/814,789.80
  6. Step 6: Final answer
    x = 1,090,175.59

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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.