Home / 725,420.20-1,087,611.90-325,733.80

Finding the Fourth Proportional to 725,420.20, 1,087,611.90 and 325,733.80

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Solution

The fourth proportional to 725,420.20, 1,087,611.90 and 325,733.80 is: 488,367.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,420.20 : 1,087,611.90 = 325,733.80 : x
  2. Step 2: Convert to fraction form
    725,420.20/1,087,611.90 = 325,733.80/x
  3. Step 3: Cross multiply
    725,420.20x = 1,087,611.90 × 325,733.80
  4. Step 4: Simplify right side
    725,420.20x = 354,271,957,112.22
  5. Step 5: Solve for x
    x = 354,271,957,112.22/725,420.20
  6. Step 6: Final answer
    x = 488,367.92

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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.