Home / 678,800.97-1,018,188.11-273,982.43

Finding the Fourth Proportional to 678,800.97, 1,018,188.11 and 273,982.43

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Solution

The fourth proportional to 678,800.97, 1,018,188.11 and 273,982.43 is: 410,968.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,800.97 : 1,018,188.11 = 273,982.43 : x
  2. Step 2: Convert to fraction form
    678,800.97/1,018,188.11 = 273,982.43/x
  3. Step 3: Cross multiply
    678,800.97x = 1,018,188.11 × 273,982.43
  4. Step 4: Simplify right side
    678,800.97x = 278,965,655,805.33
  5. Step 5: Solve for x
    x = 278,965,655,805.33/678,800.97
  6. Step 6: Final answer
    x = 410,968.26

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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.