Home / 1,433,923.56-1,978,839.68-780,568.36

Finding the Fourth Proportional to 1,433,923.56, 1,978,839.68 and 780,568.36

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Solution

The fourth proportional to 1,433,923.56, 1,978,839.68 and 780,568.36 is: 1,077,198.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,433,923.56 : 1,978,839.68 = 780,568.36 : x
  2. Step 2: Convert to fraction form
    1,433,923.56/1,978,839.68 = 780,568.36/x
  3. Step 3: Cross multiply
    1,433,923.56x = 1,978,839.68 × 780,568.36
  4. Step 4: Simplify right side
    1,433,923.56x = 1,544,619,642,291.23
  5. Step 5: Solve for x
    x = 1,544,619,642,291.23/1,433,923.56
  6. Step 6: Final answer
    x = 1,077,198.04

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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.