Home / 863,120.20-1,294,680.30-548,969.80

Finding the Fourth Proportional to 863,120.20, 1,294,680.30 and 548,969.80

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Solution

The fourth proportional to 863,120.20, 1,294,680.30 and 548,969.80 is: 823,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,120.20 : 1,294,680.30 = 548,969.80 : x
  2. Step 2: Convert to fraction form
    863,120.20/1,294,680.30 = 548,969.80/x
  3. Step 3: Cross multiply
    863,120.20x = 1,294,680.30 × 548,969.80
  4. Step 4: Simplify right side
    863,120.20x = 710,740,385,354.94
  5. Step 5: Solve for x
    x = 710,740,385,354.94/863,120.20
  6. Step 6: Final answer
    x = 823,454.70

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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.