Home / 678,208.72-1,016,579.64-298,791.12

Finding the Fourth Proportional to 678,208.72, 1,016,579.64 and 298,791.12

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Solution

The fourth proportional to 678,208.72, 1,016,579.64 and 298,791.12 is: 447,863.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,208.72 : 1,016,579.64 = 298,791.12 : x
  2. Step 2: Convert to fraction form
    678,208.72/1,016,579.64 = 298,791.12/x
  3. Step 3: Cross multiply
    678,208.72x = 1,016,579.64 × 298,791.12
  4. Step 4: Simplify right side
    678,208.72x = 303,744,969,204.80
  5. Step 5: Solve for x
    x = 303,744,969,204.80/678,208.72
  6. Step 6: Final answer
    x = 447,863.56

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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.