Home / 1,320,950.50-1,981,674.92-422,150.92

Finding the Fourth Proportional to 1,320,950.50, 1,981,674.92 and 422,150.92

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Solution

The fourth proportional to 1,320,950.50, 1,981,674.92 and 422,150.92 is: 633,306.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,950.50 : 1,981,674.92 = 422,150.92 : x
  2. Step 2: Convert to fraction form
    1,320,950.50/1,981,674.92 = 422,150.92/x
  3. Step 3: Cross multiply
    1,320,950.50x = 1,981,674.92 × 422,150.92
  4. Step 4: Simplify right side
    1,320,950.50x = 836,565,886,720.12
  5. Step 5: Solve for x
    x = 836,565,886,720.12/1,320,950.50
  6. Step 6: Final answer
    x = 633,306.01

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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.