Home / 3,988,275.14-5,981,157.83-1,291,974.78

Finding the Fourth Proportional to 3,988,275.14, 5,981,157.83 and 1,291,974.78

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Solution

The fourth proportional to 3,988,275.14, 5,981,157.83 and 1,291,974.78 is: 1,937,555.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,988,275.14 : 5,981,157.83 = 1,291,974.78 : x
  2. Step 2: Convert to fraction form
    3,988,275.14/5,981,157.83 = 1,291,974.78/x
  3. Step 3: Cross multiply
    3,988,275.14x = 5,981,157.83 × 1,291,974.78
  4. Step 4: Simplify right side
    3,988,275.14x = 7,727,505,071,559.53
  5. Step 5: Solve for x
    x = 7,727,505,071,559.53/3,988,275.14
  6. Step 6: Final answer
    x = 1,937,555.66

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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.