Home / 380,724.82-571,122.48-124,558.80

Finding the Fourth Proportional to 380,724.82, 571,122.48 and 124,558.80

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Solution

The fourth proportional to 380,724.82, 571,122.48 and 124,558.80 is: 186,849.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,724.82 : 571,122.48 = 124,558.80 : x
  2. Step 2: Convert to fraction form
    380,724.82/571,122.48 = 124,558.80/x
  3. Step 3: Cross multiply
    380,724.82x = 571,122.48 × 124,558.80
  4. Step 4: Simplify right side
    380,724.82x = 71,138,330,761.82
  5. Step 5: Solve for x
    x = 71,138,330,761.82/380,724.82
  6. Step 6: Final answer
    x = 186,849.73

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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.