Home / 657,223.20-985,057.20-278,143.20

Finding the Fourth Proportional to 657,223.20, 985,057.20 and 278,143.20

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Solution

The fourth proportional to 657,223.20, 985,057.20 and 278,143.20 is: 416,885.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,223.20 : 985,057.20 = 278,143.20 : x
  2. Step 2: Convert to fraction form
    657,223.20/985,057.20 = 278,143.20/x
  3. Step 3: Cross multiply
    657,223.20x = 985,057.20 × 278,143.20
  4. Step 4: Simplify right side
    657,223.20x = 273,986,961,791.04
  5. Step 5: Solve for x
    x = 273,986,961,791.04/657,223.20
  6. Step 6: Final answer
    x = 416,885.71

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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.