Home / 919,706.04-1,379,766.70-280,067

Finding the Fourth Proportional to 919,706.04, 1,379,766.70 and 280,067

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Solution

The fourth proportional to 919,706.04, 1,379,766.70 and 280,067 is: 420,163.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,706.04 : 1,379,766.70 = 280,067 : x
  2. Step 2: Convert to fraction form
    919,706.04/1,379,766.70 = 280,067/x
  3. Step 3: Cross multiply
    919,706.04x = 1,379,766.70 × 280,067
  4. Step 4: Simplify right side
    919,706.04x = 386,427,120,368.90
  5. Step 5: Solve for x
    x = 386,427,120,368.90/919,706.04
  6. Step 6: Final answer
    x = 420,163.73

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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.