Home / 2,667,639.28-4,001,469.20-645,879.84

Finding the Fourth Proportional to 2,667,639.28, 4,001,469.20 and 645,879.84

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Solution

The fourth proportional to 2,667,639.28, 4,001,469.20 and 645,879.84 is: 968,822.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,667,639.28 : 4,001,469.20 = 645,879.84 : x
  2. Step 2: Convert to fraction form
    2,667,639.28/4,001,469.20 = 645,879.84/x
  3. Step 3: Cross multiply
    2,667,639.28x = 4,001,469.20 × 645,879.84
  4. Step 4: Simplify right side
    2,667,639.28x = 2,584,468,286,660.93
  5. Step 5: Solve for x
    x = 2,584,468,286,660.93/2,667,639.28
  6. Step 6: Final answer
    x = 968,822.25

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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.