Home / 782,481.92-1,174,158.96-422,645.49

Finding the Fourth Proportional to 782,481.92, 1,174,158.96 and 422,645.49

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Solution

The fourth proportional to 782,481.92, 1,174,158.96 and 422,645.49 is: 634,203.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,481.92 : 1,174,158.96 = 422,645.49 : x
  2. Step 2: Convert to fraction form
    782,481.92/1,174,158.96 = 422,645.49/x
  3. Step 3: Cross multiply
    782,481.92x = 1,174,158.96 × 422,645.49
  4. Step 4: Simplify right side
    782,481.92x = 496,252,988,987.09
  5. Step 5: Solve for x
    x = 496,252,988,987.09/782,481.92
  6. Step 6: Final answer
    x = 634,203.78

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1.5x scale

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.