Home / 551,270.20-826,929.60-311,380.60

Finding the Fourth Proportional to 551,270.20, 826,929.60 and 311,380.60

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Solution

The fourth proportional to 551,270.20, 826,929.60 and 311,380.60 is: 467,084.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,270.20 : 826,929.60 = 311,380.60 : x
  2. Step 2: Convert to fraction form
    551,270.20/826,929.60 = 311,380.60/x
  3. Step 3: Cross multiply
    551,270.20x = 826,929.60 × 311,380.60
  4. Step 4: Simplify right side
    551,270.20x = 257,489,835,005.76
  5. Step 5: Solve for x
    x = 257,489,835,005.76/551,270.20
  6. Step 6: Final answer
    x = 467,084.63

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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.