Home / 3,928,403.28-5,890,887.12-1,981,934.40

Finding the Fourth Proportional to 3,928,403.28, 5,890,887.12 and 1,981,934.40

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Solution

The fourth proportional to 3,928,403.28, 5,890,887.12 and 1,981,934.40 is: 2,972,034.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928,403.28 : 5,890,887.12 = 1,981,934.40 : x
  2. Step 2: Convert to fraction form
    3,928,403.28/5,890,887.12 = 1,981,934.40/x
  3. Step 3: Cross multiply
    3,928,403.28x = 5,890,887.12 × 1,981,934.40
  4. Step 4: Simplify right side
    3,928,403.28x = 11,675,351,829,644.93
  5. Step 5: Solve for x
    x = 11,675,351,829,644.93/3,928,403.28
  6. Step 6: Final answer
    x = 2,972,034.95

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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.