Home / 1,321,291.35-1,981,910.34-422,733.06

Finding the Fourth Proportional to 1,321,291.35, 1,981,910.34 and 422,733.06

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Solution

The fourth proportional to 1,321,291.35, 1,981,910.34 and 422,733.06 is: 634,091.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,291.35 : 1,981,910.34 = 422,733.06 : x
  2. Step 2: Convert to fraction form
    1,321,291.35/1,981,910.34 = 422,733.06/x
  3. Step 3: Cross multiply
    1,321,291.35x = 1,981,910.34 × 422,733.06
  4. Step 4: Simplify right side
    1,321,291.35x = 837,819,022,673.84
  5. Step 5: Solve for x
    x = 837,819,022,673.84/1,321,291.35
  6. Step 6: Final answer
    x = 634,091.05

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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.