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Finding the Fourth Proportional to 505,774.40, 758,771.20 and 269,082.88

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Solution

The fourth proportional to 505,774.40, 758,771.20 and 269,082.88 is: 403,682.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,774.40 : 758,771.20 = 269,082.88 : x
  2. Step 2: Convert to fraction form
    505,774.40/758,771.20 = 269,082.88/x
  3. Step 3: Cross multiply
    505,774.40x = 758,771.20 × 269,082.88
  4. Step 4: Simplify right side
    505,774.40x = 204,172,339,757.06
  5. Step 5: Solve for x
    x = 204,172,339,757.06/505,774.40
  6. Step 6: Final answer
    x = 403,682.63

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1.5x scale

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.