Home / 725,100.60-1,087,651.30-275,717.72

Finding the Fourth Proportional to 725,100.60, 1,087,651.30 and 275,717.72

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Solution

The fourth proportional to 725,100.60, 1,087,651.30 and 275,717.72 is: 413,576.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,100.60 : 1,087,651.30 = 275,717.72 : x
  2. Step 2: Convert to fraction form
    725,100.60/1,087,651.30 = 275,717.72/x
  3. Step 3: Cross multiply
    725,100.60x = 1,087,651.30 × 275,717.72
  4. Step 4: Simplify right side
    725,100.60x = 299,884,736,591.04
  5. Step 5: Solve for x
    x = 299,884,736,591.04/725,100.60
  6. Step 6: Final answer
    x = 413,576.73

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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.