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Finding the Fourth Proportional to 538,571.52, 743,232.24 and 309,067.60

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Solution

The fourth proportional to 538,571.52, 743,232.24 and 309,067.60 is: 426,515.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,571.52 : 743,232.24 = 309,067.60 : x
  2. Step 2: Convert to fraction form
    538,571.52/743,232.24 = 309,067.60/x
  3. Step 3: Cross multiply
    538,571.52x = 743,232.24 × 309,067.60
  4. Step 4: Simplify right side
    538,571.52x = 229,709,004,659.42
  5. Step 5: Solve for x
    x = 229,709,004,659.42/538,571.52
  6. Step 6: Final answer
    x = 426,515.32

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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.