Home / 505,848.36-698,084.82-279,508.44

Finding the Fourth Proportional to 505,848.36, 698,084.82 and 279,508.44

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Solution

The fourth proportional to 505,848.36, 698,084.82 and 279,508.44 is: 385,729.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,848.36 : 698,084.82 = 279,508.44 : x
  2. Step 2: Convert to fraction form
    505,848.36/698,084.82 = 279,508.44/x
  3. Step 3: Cross multiply
    505,848.36x = 698,084.82 × 279,508.44
  4. Step 4: Simplify right side
    505,848.36x = 195,120,599,025.88
  5. Step 5: Solve for x
    x = 195,120,599,025.88/505,848.36
  6. Step 6: Final answer
    x = 385,729.43

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1.5x scale

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.