Home / 2,639,212.80-3,642,156-1,431,988.80

Finding the Fourth Proportional to 2,639,212.80, 3,642,156 and 1,431,988.80

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Solution

The fourth proportional to 2,639,212.80, 3,642,156 and 1,431,988.80 is: 1,976,167.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,639,212.80 : 3,642,156 = 1,431,988.80 : x
  2. Step 2: Convert to fraction form
    2,639,212.80/3,642,156 = 1,431,988.80/x
  3. Step 3: Cross multiply
    2,639,212.80x = 3,642,156 × 1,431,988.80
  4. Step 4: Simplify right side
    2,639,212.80x = 5,215,526,599,852.80
  5. Step 5: Solve for x
    x = 5,215,526,599,852.80/2,639,212.80
  6. Step 6: Final answer
    x = 1,976,167.51

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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.