Home / 1,425,418.52-1,967,078.04-780,861.92

Finding the Fourth Proportional to 1,425,418.52, 1,967,078.04 and 780,861.92

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Solution

The fourth proportional to 1,425,418.52, 1,967,078.04 and 780,861.92 is: 1,077,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,418.52 : 1,967,078.04 = 780,861.92 : x
  2. Step 2: Convert to fraction form
    1,425,418.52/1,967,078.04 = 780,861.92/x
  3. Step 3: Cross multiply
    1,425,418.52x = 1,967,078.04 × 780,861.92
  4. Step 4: Simplify right side
    1,425,418.52x = 1,536,016,335,104.24
  5. Step 5: Solve for x
    x = 1,536,016,335,104.24/1,425,418.52
  6. Step 6: Final answer
    x = 1,077,589.71

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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.