Home / 500,989.24-751,485.39-121,910.03

Finding the Fourth Proportional to 500,989.24, 751,485.39 and 121,910.03

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Solution

The fourth proportional to 500,989.24, 751,485.39 and 121,910.03 is: 182,865.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,989.24 : 751,485.39 = 121,910.03 : x
  2. Step 2: Convert to fraction form
    500,989.24/751,485.39 = 121,910.03/x
  3. Step 3: Cross multiply
    500,989.24x = 751,485.39 × 121,910.03
  4. Step 4: Simplify right side
    500,989.24x = 91,613,606,439.46
  5. Step 5: Solve for x
    x = 91,613,606,439.46/500,989.24
  6. Step 6: Final answer
    x = 182,865.42

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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.