Home / 725,208.57-1,087,812.86-275,825.64

Finding the Fourth Proportional to 725,208.57, 1,087,812.86 and 275,825.64

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Solution

The fourth proportional to 725,208.57, 1,087,812.86 and 275,825.64 is: 413,738.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,208.57 : 1,087,812.86 = 275,825.64 : x
  2. Step 2: Convert to fraction form
    725,208.57/1,087,812.86 = 275,825.64/x
  3. Step 3: Cross multiply
    725,208.57x = 1,087,812.86 × 275,825.64
  4. Step 4: Simplify right side
    725,208.57x = 300,046,676,930.60
  5. Step 5: Solve for x
    x = 300,046,676,930.60/725,208.57
  6. Step 6: Final answer
    x = 413,738.46

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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.