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Finding the Fourth Proportional to 656,771.40, 984,850.92 and 341,143.56

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Solution

The fourth proportional to 656,771.40, 984,850.92 and 341,143.56 is: 511,556.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,771.40 : 984,850.92 = 341,143.56 : x
  2. Step 2: Convert to fraction form
    656,771.40/984,850.92 = 341,143.56/x
  3. Step 3: Cross multiply
    656,771.40x = 984,850.92 × 341,143.56
  4. Step 4: Simplify right side
    656,771.40x = 335,975,548,918.08
  5. Step 5: Solve for x
    x = 335,975,548,918.08/656,771.40
  6. Step 6: Final answer
    x = 511,556.30

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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.