Home / 780,344.82-1,170,517.32-219,379.32

Finding the Fourth Proportional to 780,344.82, 1,170,517.32 and 219,379.32

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Solution

The fourth proportional to 780,344.82, 1,170,517.32 and 219,379.32 is: 329,069.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,344.82 : 1,170,517.32 = 219,379.32 : x
  2. Step 2: Convert to fraction form
    780,344.82/1,170,517.32 = 219,379.32/x
  3. Step 3: Cross multiply
    780,344.82x = 1,170,517.32 × 219,379.32
  4. Step 4: Simplify right side
    780,344.82x = 256,787,293,709.82
  5. Step 5: Solve for x
    x = 256,787,293,709.82/780,344.82
  6. Step 6: Final answer
    x = 329,069.01

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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.