Home / 505,917.36-698,180.04-279,577.44

Finding the Fourth Proportional to 505,917.36, 698,180.04 and 279,577.44

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Solution

The fourth proportional to 505,917.36, 698,180.04 and 279,577.44 is: 385,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,917.36 : 698,180.04 = 279,577.44 : x
  2. Step 2: Convert to fraction form
    505,917.36/698,180.04 = 279,577.44/x
  3. Step 3: Cross multiply
    505,917.36x = 698,180.04 × 279,577.44
  4. Step 4: Simplify right side
    505,917.36x = 195,195,388,242.30
  5. Step 5: Solve for x
    x = 195,195,388,242.30/505,917.36
  6. Step 6: Final answer
    x = 385,824.65

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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.