Home / 1,321,502.88-1,982,399.58-422,733.36

Finding the Fourth Proportional to 1,321,502.88, 1,982,399.58 and 422,733.36

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Solution

The fourth proportional to 1,321,502.88, 1,982,399.58 and 422,733.36 is: 634,146.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,502.88 : 1,982,399.58 = 422,733.36 : x
  2. Step 2: Convert to fraction form
    1,321,502.88/1,982,399.58 = 422,733.36/x
  3. Step 3: Cross multiply
    1,321,502.88x = 1,982,399.58 × 422,733.36
  4. Step 4: Simplify right side
    1,321,502.88x = 838,026,435,315.99
  5. Step 5: Solve for x
    x = 838,026,435,315.99/1,321,502.88
  6. Step 6: Final answer
    x = 634,146.51

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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.