Home / 1,286,704.71-1,930,073.54-340,067.30

Finding the Fourth Proportional to 1,286,704.71, 1,930,073.54 and 340,067.30

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Solution

The fourth proportional to 1,286,704.71, 1,930,073.54 and 340,067.30 is: 510,105.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,704.71 : 1,930,073.54 = 340,067.30 : x
  2. Step 2: Convert to fraction form
    1,286,704.71/1,930,073.54 = 340,067.30/x
  3. Step 3: Cross multiply
    1,286,704.71x = 1,930,073.54 × 340,067.30
  4. Step 4: Simplify right side
    1,286,704.71x = 656,354,886,198.54
  5. Step 5: Solve for x
    x = 656,354,886,198.54/1,286,704.71
  6. Step 6: Final answer
    x = 510,105.30

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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.