Home / 1,338,374.34-2,005,789.50-981,718.38

Finding the Fourth Proportional to 1,338,374.34, 2,005,789.50 and 981,718.38

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Solution

The fourth proportional to 1,338,374.34, 2,005,789.50 and 981,718.38 is: 1,471,277.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,374.34 : 2,005,789.50 = 981,718.38 : x
  2. Step 2: Convert to fraction form
    1,338,374.34/2,005,789.50 = 981,718.38/x
  3. Step 3: Cross multiply
    1,338,374.34x = 2,005,789.50 × 981,718.38
  4. Step 4: Simplify right side
    1,338,374.34x = 1,969,120,418,561.01
  5. Step 5: Solve for x
    x = 1,969,120,418,561.01/1,338,374.34
  6. Step 6: Final answer
    x = 1,471,277.77

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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.