Home / 2,171,197.80-3,256,805.07-908,139.42

Finding the Fourth Proportional to 2,171,197.80, 3,256,805.07 and 908,139.42

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Solution

The fourth proportional to 2,171,197.80, 3,256,805.07 and 908,139.42 is: 1,362,212.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,171,197.80 : 3,256,805.07 = 908,139.42 : x
  2. Step 2: Convert to fraction form
    2,171,197.80/3,256,805.07 = 908,139.42/x
  3. Step 3: Cross multiply
    2,171,197.80x = 3,256,805.07 × 908,139.42
  4. Step 4: Simplify right side
    2,171,197.80x = 2,957,633,067,322.86
  5. Step 5: Solve for x
    x = 2,957,633,067,322.86/2,171,197.80
  6. Step 6: Final answer
    x = 1,362,212.63

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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.