Home / 678,063.36-1,017,049.92-278,600.64

Finding the Fourth Proportional to 678,063.36, 1,017,049.92 and 278,600.64

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Solution

The fourth proportional to 678,063.36, 1,017,049.92 and 278,600.64 is: 417,882.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,063.36 : 1,017,049.92 = 278,600.64 : x
  2. Step 2: Convert to fraction form
    678,063.36/1,017,049.92 = 278,600.64/x
  3. Step 3: Cross multiply
    678,063.36x = 1,017,049.92 × 278,600.64
  4. Step 4: Simplify right side
    678,063.36x = 283,350,758,623.95
  5. Step 5: Solve for x
    x = 283,350,758,623.95/678,063.36
  6. Step 6: Final answer
    x = 417,882.42

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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.