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Finding the Fourth Proportional to 591,687.56, 888,318.66 and 311,401.64

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Solution

The fourth proportional to 591,687.56, 888,318.66 and 311,401.64 is: 467,516.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,687.56 : 888,318.66 = 311,401.64 : x
  2. Step 2: Convert to fraction form
    591,687.56/888,318.66 = 311,401.64/x
  3. Step 3: Cross multiply
    591,687.56x = 888,318.66 × 311,401.64
  4. Step 4: Simplify right side
    591,687.56x = 276,623,887,566.60
  5. Step 5: Solve for x
    x = 276,623,887,566.60/591,687.56
  6. Step 6: Final answer
    x = 467,516.82

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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.