Home / 1,321,493.04-1,982,370.24-422,709.12

Finding the Fourth Proportional to 1,321,493.04, 1,982,370.24 and 422,709.12

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Solution

The fourth proportional to 1,321,493.04, 1,982,370.24 and 422,709.12 is: 634,105.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,493.04 : 1,982,370.24 = 422,709.12 : x
  2. Step 2: Convert to fraction form
    1,321,493.04/1,982,370.24 = 422,709.12/x
  3. Step 3: Cross multiply
    1,321,493.04x = 1,982,370.24 × 422,709.12
  4. Step 4: Simplify right side
    1,321,493.04x = 837,965,979,664.59
  5. Step 5: Solve for x
    x = 837,965,979,664.59/1,321,493.04
  6. Step 6: Final answer
    x = 634,105.48

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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.