Home / 725,087.20-1,087,630.80-325,919.20

Finding the Fourth Proportional to 725,087.20, 1,087,630.80 and 325,919.20

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Solution

The fourth proportional to 725,087.20, 1,087,630.80 and 325,919.20 is: 488,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,087.20 : 1,087,630.80 = 325,919.20 : x
  2. Step 2: Convert to fraction form
    725,087.20/1,087,630.80 = 325,919.20/x
  3. Step 3: Cross multiply
    725,087.20x = 1,087,630.80 × 325,919.20
  4. Step 4: Simplify right side
    725,087.20x = 354,479,760,231.36
  5. Step 5: Solve for x
    x = 354,479,760,231.36/725,087.20
  6. Step 6: Final answer
    x = 488,878.80

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Similar ratio
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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.