Home / 1,320,676.70-1,981,015.05-323,404.70

Finding the Fourth Proportional to 1,320,676.70, 1,981,015.05 and 323,404.70

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Solution

The fourth proportional to 1,320,676.70, 1,981,015.05 and 323,404.70 is: 485,107.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,676.70 : 1,981,015.05 = 323,404.70 : x
  2. Step 2: Convert to fraction form
    1,320,676.70/1,981,015.05 = 323,404.70/x
  3. Step 3: Cross multiply
    1,320,676.70x = 1,981,015.05 × 323,404.70
  4. Step 4: Simplify right side
    1,320,676.70x = 640,669,577,940.74
  5. Step 5: Solve for x
    x = 640,669,577,940.74/1,320,676.70
  6. Step 6: Final answer
    x = 485,107.05

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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.