Home / 1,245,687.91-1,719,049.25-672,728.03

Finding the Fourth Proportional to 1,245,687.91, 1,719,049.25 and 672,728.03

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Solution

The fourth proportional to 1,245,687.91, 1,719,049.25 and 672,728.03 is: 928,364.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,687.91 : 1,719,049.25 = 672,728.03 : x
  2. Step 2: Convert to fraction form
    1,245,687.91/1,719,049.25 = 672,728.03/x
  3. Step 3: Cross multiply
    1,245,687.91x = 1,719,049.25 × 672,728.03
  4. Step 4: Simplify right side
    1,245,687.91x = 1,156,452,608,512.05
  5. Step 5: Solve for x
    x = 1,156,452,608,512.05/1,245,687.91
  6. Step 6: Final answer
    x = 928,364.64

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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.