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Finding the Fourth Proportional to 624,015.60, 861,067.44 and 352,067.64

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Solution

The fourth proportional to 624,015.60, 861,067.44 and 352,067.64 is: 485,811.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,015.60 : 861,067.44 = 352,067.64 : x
  2. Step 2: Convert to fraction form
    624,015.60/861,067.44 = 352,067.64/x
  3. Step 3: Cross multiply
    624,015.60x = 861,067.44 × 352,067.64
  4. Step 4: Simplify right side
    624,015.60x = 303,153,981,481.64
  5. Step 5: Solve for x
    x = 303,153,981,481.64/624,015.60
  6. Step 6: Final answer
    x = 485,811.54

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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.