Home / 2,578,693.86-3,868,169.28-981,380.75

Finding the Fourth Proportional to 2,578,693.86, 3,868,169.28 and 981,380.75

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Solution

The fourth proportional to 2,578,693.86, 3,868,169.28 and 981,380.75 is: 1,472,120.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,578,693.86 : 3,868,169.28 = 981,380.75 : x
  2. Step 2: Convert to fraction form
    2,578,693.86/3,868,169.28 = 981,380.75/x
  3. Step 3: Cross multiply
    2,578,693.86x = 3,868,169.28 × 981,380.75
  4. Step 4: Simplify right side
    2,578,693.86x = 3,796,146,854,556.03
  5. Step 5: Solve for x
    x = 3,796,146,854,556.03/2,578,693.86
  6. Step 6: Final answer
    x = 1,472,120.02

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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.