Home / 3,240,143.49-4,471,311.39-1,789,807.71

Finding the Fourth Proportional to 3,240,143.49, 4,471,311.39 and 1,789,807.71

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Solution

The fourth proportional to 3,240,143.49, 4,471,311.39 and 1,789,807.71 is: 2,469,886.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,240,143.49 : 4,471,311.39 = 1,789,807.71 : x
  2. Step 2: Convert to fraction form
    3,240,143.49/4,471,311.39 = 1,789,807.71/x
  3. Step 3: Cross multiply
    3,240,143.49x = 4,471,311.39 × 1,789,807.71
  4. Step 4: Simplify right side
    3,240,143.49x = 8,002,787,609,688.46
  5. Step 5: Solve for x
    x = 8,002,787,609,688.46/3,240,143.49
  6. Step 6: Final answer
    x = 2,469,886.79

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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.