Home / 1,942,997.80-2,912,358.30-680,175.40

Finding the Fourth Proportional to 1,942,997.80, 2,912,358.30 and 680,175.40

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Solution

The fourth proportional to 1,942,997.80, 2,912,358.30 and 680,175.40 is: 1,019,514.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,942,997.80 : 2,912,358.30 = 680,175.40 : x
  2. Step 2: Convert to fraction form
    1,942,997.80/2,912,358.30 = 680,175.40/x
  3. Step 3: Cross multiply
    1,942,997.80x = 2,912,358.30 × 680,175.40
  4. Step 4: Simplify right side
    1,942,997.80x = 1,980,914,471,645.82
  5. Step 5: Solve for x
    x = 1,980,914,471,645.82/1,942,997.80
  6. Step 6: Final answer
    x = 1,019,514.52

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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.