Home / 725,186.28-1,087,471.88-345,667.97

Finding the Fourth Proportional to 725,186.28, 1,087,471.88 and 345,667.97

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Solution

The fourth proportional to 725,186.28, 1,087,471.88 and 345,667.97 is: 518,355.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,186.28 : 1,087,471.88 = 345,667.97 : x
  2. Step 2: Convert to fraction form
    725,186.28/1,087,471.88 = 345,667.97/x
  3. Step 3: Cross multiply
    725,186.28x = 1,087,471.88 × 345,667.97
  4. Step 4: Simplify right side
    725,186.28x = 375,904,199,478.28
  5. Step 5: Solve for x
    x = 375,904,199,478.28/725,186.28
  6. Step 6: Final answer
    x = 518,355.36

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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.