Home / 505,836.36-698,068.26-279,496.44

Finding the Fourth Proportional to 505,836.36, 698,068.26 and 279,496.44

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Solution

The fourth proportional to 505,836.36, 698,068.26 and 279,496.44 is: 385,712.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,836.36 : 698,068.26 = 279,496.44 : x
  2. Step 2: Convert to fraction form
    505,836.36/698,068.26 = 279,496.44/x
  3. Step 3: Cross multiply
    505,836.36x = 698,068.26 × 279,496.44
  4. Step 4: Simplify right side
    505,836.36x = 195,107,593,546.99
  5. Step 5: Solve for x
    x = 195,107,593,546.99/505,836.36
  6. Step 6: Final answer
    x = 385,712.87

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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.