Home / 3,151,145.21-4,726,815.03-1,231,979.81

Finding the Fourth Proportional to 3,151,145.21, 4,726,815.03 and 1,231,979.81

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Solution

The fourth proportional to 3,151,145.21, 4,726,815.03 and 1,231,979.81 is: 1,848,007.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,151,145.21 : 4,726,815.03 = 1,231,979.81 : x
  2. Step 2: Convert to fraction form
    3,151,145.21/4,726,815.03 = 1,231,979.81/x
  3. Step 3: Cross multiply
    3,151,145.21x = 4,726,815.03 × 1,231,979.81
  4. Step 4: Simplify right side
    3,151,145.21x = 5,823,340,658,930.47
  5. Step 5: Solve for x
    x = 5,823,340,658,930.47/3,151,145.21
  6. Step 6: Final answer
    x = 1,848,007.72

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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.