Home / 825,914.12-1,239,322.54-320,494.97

Finding the Fourth Proportional to 825,914.12, 1,239,322.54 and 320,494.97

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Solution

The fourth proportional to 825,914.12, 1,239,322.54 and 320,494.97 is: 480,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    825,914.12 : 1,239,322.54 = 320,494.97 : x
  2. Step 2: Convert to fraction form
    825,914.12/1,239,322.54 = 320,494.97/x
  3. Step 3: Cross multiply
    825,914.12x = 1,239,322.54 × 320,494.97
  4. Step 4: Simplify right side
    825,914.12x = 397,196,640,277.62
  5. Step 5: Solve for x
    x = 397,196,640,277.62/825,914.12
  6. Step 6: Final answer
    x = 480,917.60

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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.