Home / 1,976,145.98-2,962,200.09-1,121,412.38

Finding the Fourth Proportional to 1,976,145.98, 2,962,200.09 and 1,121,412.38

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Solution

The fourth proportional to 1,976,145.98, 2,962,200.09 and 1,121,412.38 is: 1,680,972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,976,145.98 : 2,962,200.09 = 1,121,412.38 : x
  2. Step 2: Convert to fraction form
    1,976,145.98/2,962,200.09 = 1,121,412.38/x
  3. Step 3: Cross multiply
    1,976,145.98x = 2,962,200.09 × 1,121,412.38
  4. Step 4: Simplify right side
    1,976,145.98x = 3,321,847,867,573.87
  5. Step 5: Solve for x
    x = 3,321,847,867,573.87/1,976,145.98
  6. Step 6: Final answer
    x = 1,680,972.92

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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.