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Finding the Fourth Proportional to 505,560.09, 757,928.96 and 345,231.73

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Solution

The fourth proportional to 505,560.09, 757,928.96 and 345,231.73 is: 517,566.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,560.09 : 757,928.96 = 345,231.73 : x
  2. Step 2: Convert to fraction form
    505,560.09/757,928.96 = 345,231.73/x
  3. Step 3: Cross multiply
    505,560.09x = 757,928.96 × 345,231.73
  4. Step 4: Simplify right side
    505,560.09x = 261,661,126,077.90
  5. Step 5: Solve for x
    x = 261,661,126,077.90/505,560.09
  6. Step 6: Final answer
    x = 517,566.82

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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.