Home / 1,330,027.91-1,995,322.22-431,399.72

Finding the Fourth Proportional to 1,330,027.91, 1,995,322.22 and 431,399.72

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Solution

The fourth proportional to 1,330,027.91, 1,995,322.22 and 431,399.72 is: 647,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,027.91 : 1,995,322.22 = 431,399.72 : x
  2. Step 2: Convert to fraction form
    1,330,027.91/1,995,322.22 = 431,399.72/x
  3. Step 3: Cross multiply
    1,330,027.91x = 1,995,322.22 × 431,399.72
  4. Step 4: Simplify right side
    1,330,027.91x = 860,781,444,860.78
  5. Step 5: Solve for x
    x = 860,781,444,860.78/1,330,027.91
  6. Step 6: Final answer
    x = 647,190.51

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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.