Home / 1,370,231.88-1,890,791.91-818,838.19

Finding the Fourth Proportional to 1,370,231.88, 1,890,791.91 and 818,838.19

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Solution

The fourth proportional to 1,370,231.88, 1,890,791.91 and 818,838.19 is: 1,129,920.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,231.88 : 1,890,791.91 = 818,838.19 : x
  2. Step 2: Convert to fraction form
    1,370,231.88/1,890,791.91 = 818,838.19/x
  3. Step 3: Cross multiply
    1,370,231.88x = 1,890,791.91 × 818,838.19
  4. Step 4: Simplify right side
    1,370,231.88x = 1,548,252,625,251.04
  5. Step 5: Solve for x
    x = 1,548,252,625,251.04/1,370,231.88
  6. Step 6: Final answer
    x = 1,129,920.16

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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.