Home / 505,865.80-698,086.37-276,418.04

Finding the Fourth Proportional to 505,865.80, 698,086.37 and 276,418.04

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Solution

The fourth proportional to 505,865.80, 698,086.37 and 276,418.04 is: 381,452.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,865.80 : 698,086.37 = 276,418.04 : x
  2. Step 2: Convert to fraction form
    505,865.80/698,086.37 = 276,418.04/x
  3. Step 3: Cross multiply
    505,865.80x = 698,086.37 × 276,418.04
  4. Step 4: Simplify right side
    505,865.80x = 192,963,664,764.03
  5. Step 5: Solve for x
    x = 192,963,664,764.03/505,865.80
  6. Step 6: Final answer
    x = 381,452.29

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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.