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Finding the Fourth Proportional to 551,499.70, 827,273.85 and 311,610.10

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Solution

The fourth proportional to 551,499.70, 827,273.85 and 311,610.10 is: 467,428.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,499.70 : 827,273.85 = 311,610.10 : x
  2. Step 2: Convert to fraction form
    551,499.70/827,273.85 = 311,610.10/x
  3. Step 3: Cross multiply
    551,499.70x = 827,273.85 × 311,610.10
  4. Step 4: Simplify right side
    551,499.70x = 257,786,887,125.89
  5. Step 5: Solve for x
    x = 257,786,887,125.89/551,499.70
  6. Step 6: Final answer
    x = 467,428.88

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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.