Home / 722,067.63-996,453.39-395,401.24

Finding the Fourth Proportional to 722,067.63, 996,453.39 and 395,401.24

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Solution

The fourth proportional to 722,067.63, 996,453.39 and 395,401.24 is: 545,653.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,067.63 : 996,453.39 = 395,401.24 : x
  2. Step 2: Convert to fraction form
    722,067.63/996,453.39 = 395,401.24/x
  3. Step 3: Cross multiply
    722,067.63x = 996,453.39 × 395,401.24
  4. Step 4: Simplify right side
    722,067.63x = 393,998,906,008.20
  5. Step 5: Solve for x
    x = 393,998,906,008.20/722,067.63
  6. Step 6: Final answer
    x = 545,653.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.