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Finding the Fourth Proportional to 1,435,904.31, 1,981,589.46 and 791,366.01

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Solution

The fourth proportional to 1,435,904.31, 1,981,589.46 and 791,366.01 is: 1,092,107.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,904.31 : 1,981,589.46 = 791,366.01 : x
  2. Step 2: Convert to fraction form
    1,435,904.31/1,981,589.46 = 791,366.01/x
  3. Step 3: Cross multiply
    1,435,904.31x = 1,981,589.46 × 791,366.01
  4. Step 4: Simplify right side
    1,435,904.31x = 1,568,162,544,418.25
  5. Step 5: Solve for x
    x = 1,568,162,544,418.25/1,435,904.31
  6. Step 6: Final answer
    x = 1,092,107.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.