Home / 725,105.12-1,087,685.01-275,742.23

Finding the Fourth Proportional to 725,105.12, 1,087,685.01 and 275,742.23

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Solution

The fourth proportional to 725,105.12, 1,087,685.01 and 275,742.23 is: 413,623.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,105.12 : 1,087,685.01 = 275,742.23 : x
  2. Step 2: Convert to fraction form
    725,105.12/1,087,685.01 = 275,742.23/x
  3. Step 3: Cross multiply
    725,105.12x = 1,087,685.01 × 275,742.23
  4. Step 4: Simplify right side
    725,105.12x = 299,920,684,756.55
  5. Step 5: Solve for x
    x = 299,920,684,756.55/725,105.12
  6. Step 6: Final answer
    x = 413,623.73

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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.