Home / 2,131,016.43-3,197,785.75-784,124.87

Finding the Fourth Proportional to 2,131,016.43, 3,197,785.75 and 784,124.87

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Solution

The fourth proportional to 2,131,016.43, 3,197,785.75 and 784,124.87 is: 1,176,651.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131,016.43 : 3,197,785.75 = 784,124.87 : x
  2. Step 2: Convert to fraction form
    2,131,016.43/3,197,785.75 = 784,124.87/x
  3. Step 3: Cross multiply
    2,131,016.43x = 3,197,785.75 × 784,124.87
  4. Step 4: Simplify right side
    2,131,016.43x = 2,507,463,335,506.60
  5. Step 5: Solve for x
    x = 2,507,463,335,506.60/2,131,016.43
  6. Step 6: Final answer
    x = 1,176,651.34

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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.