Home / 825,480.68-1,238,321.82-320,050.28

Finding the Fourth Proportional to 825,480.68, 1,238,321.82 and 320,050.28

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Solution

The fourth proportional to 825,480.68, 1,238,321.82 and 320,050.28 is: 480,114.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,480.68 : 1,238,321.82 = 320,050.28 : x
  2. Step 2: Convert to fraction form
    825,480.68/1,238,321.82 = 320,050.28/x
  3. Step 3: Cross multiply
    825,480.68x = 1,238,321.82 × 320,050.28
  4. Step 4: Simplify right side
    825,480.68x = 396,325,245,221.11
  5. Step 5: Solve for x
    x = 396,325,245,221.11/825,480.68
  6. Step 6: Final answer
    x = 480,114.50

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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.