Home / 863,204.20-1,294,191.90-330,519.40

Finding the Fourth Proportional to 863,204.20, 1,294,191.90 and 330,519.40

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Solution

The fourth proportional to 863,204.20, 1,294,191.90 and 330,519.40 is: 495,543.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,204.20 : 1,294,191.90 = 330,519.40 : x
  2. Step 2: Convert to fraction form
    863,204.20/1,294,191.90 = 330,519.40/x
  3. Step 3: Cross multiply
    863,204.20x = 1,294,191.90 × 330,519.40
  4. Step 4: Simplify right side
    863,204.20x = 427,755,530,272.86
  5. Step 5: Solve for x
    x = 427,755,530,272.86/863,204.20
  6. Step 6: Final answer
    x = 495,543.85

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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.