Home / 725,588.20-1,087,863.90-325,901.80

Finding the Fourth Proportional to 725,588.20, 1,087,863.90 and 325,901.80

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Solution

The fourth proportional to 725,588.20, 1,087,863.90 and 325,901.80 is: 488,619.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,588.20 : 1,087,863.90 = 325,901.80 : x
  2. Step 2: Convert to fraction form
    725,588.20/1,087,863.90 = 325,901.80/x
  3. Step 3: Cross multiply
    725,588.20x = 1,087,863.90 × 325,901.80
  4. Step 4: Simplify right side
    725,588.20x = 354,536,803,165.02
  5. Step 5: Solve for x
    x = 354,536,803,165.02/725,588.20
  6. Step 6: Final answer
    x = 488,619.86

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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.