Home / 3,928,405.64-5,890,890.27-1,981,936.34

Finding the Fourth Proportional to 3,928,405.64, 5,890,890.27 and 1,981,936.34

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Solution

The fourth proportional to 3,928,405.64, 5,890,890.27 and 1,981,936.34 is: 2,972,037.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,405.64 : 5,890,890.27 = 1,981,936.34 : x
  2. Step 2: Convert to fraction form
    3,928,405.64/5,890,890.27 = 1,981,936.34/x
  3. Step 3: Cross multiply
    3,928,405.64x = 5,890,890.27 × 1,981,936.34
  4. Step 4: Simplify right side
    3,928,405.64x = 11,675,369,501,065.41
  5. Step 5: Solve for x
    x = 11,675,369,501,065.41/3,928,405.64
  6. Step 6: Final answer
    x = 2,972,037.66

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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.