Home / 521,933.52-720,255.87-307,087.23

Finding the Fourth Proportional to 521,933.52, 720,255.87 and 307,087.23

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Solution

The fourth proportional to 521,933.52, 720,255.87 and 307,087.23 is: 423,773.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,933.52 : 720,255.87 = 307,087.23 : x
  2. Step 2: Convert to fraction form
    521,933.52/720,255.87 = 307,087.23/x
  3. Step 3: Cross multiply
    521,933.52x = 720,255.87 × 307,087.23
  4. Step 4: Simplify right side
    521,933.52x = 221,181,380,009.54
  5. Step 5: Solve for x
    x = 221,181,380,009.54/521,933.52
  6. Step 6: Final answer
    x = 423,773.09

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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.