Home / 1,419,205.07-2,129,747.83-779,955.23

Finding the Fourth Proportional to 1,419,205.07, 2,129,747.83 and 779,955.23

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Solution

The fourth proportional to 1,419,205.07, 2,129,747.83 and 779,955.23 is: 1,170,449.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,205.07 : 2,129,747.83 = 779,955.23 : x
  2. Step 2: Convert to fraction form
    1,419,205.07/2,129,747.83 = 779,955.23/x
  3. Step 3: Cross multiply
    1,419,205.07x = 2,129,747.83 × 779,955.23
  4. Step 4: Simplify right side
    1,419,205.07x = 1,661,107,961,964.13
  5. Step 5: Solve for x
    x = 1,661,107,961,964.13/1,419,205.07
  6. Step 6: Final answer
    x = 1,170,449.57

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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.