Home / 2,129,544.19-3,189,223.81-1,228,253.59

Finding the Fourth Proportional to 2,129,544.19, 3,189,223.81 and 1,228,253.59

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Solution

The fourth proportional to 2,129,544.19, 3,189,223.81 and 1,228,253.59 is: 1,839,443.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129,544.19 : 3,189,223.81 = 1,228,253.59 : x
  2. Step 2: Convert to fraction form
    2,129,544.19/3,189,223.81 = 1,228,253.59/x
  3. Step 3: Cross multiply
    2,129,544.19x = 3,189,223.81 × 1,228,253.59
  4. Step 4: Simplify right side
    2,129,544.19x = 3,917,175,593,945.98
  5. Step 5: Solve for x
    x = 3,917,175,593,945.98/2,129,544.19
  6. Step 6: Final answer
    x = 1,839,443.21

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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.