Home / 1,320,944.50-1,981,665.92-422,144.91

Finding the Fourth Proportional to 1,320,944.50, 1,981,665.92 and 422,144.91

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Solution

The fourth proportional to 1,320,944.50, 1,981,665.92 and 422,144.91 is: 633,297.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,944.50 : 1,981,665.92 = 422,144.91 : x
  2. Step 2: Convert to fraction form
    1,320,944.50/1,981,665.92 = 422,144.91/x
  3. Step 3: Cross multiply
    1,320,944.50x = 1,981,665.92 × 422,144.91
  4. Step 4: Simplify right side
    1,320,944.50x = 836,550,182,503.83
  5. Step 5: Solve for x
    x = 836,550,182,503.83/1,320,944.50
  6. Step 6: Final answer
    x = 633,297.00

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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.