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Finding the Fourth Proportional to 505,559.09, 757,927.46 and 345,230.73

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Solution

The fourth proportional to 505,559.09, 757,927.46 and 345,230.73 is: 517,565.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,559.09 : 757,927.46 = 345,230.73 : x
  2. Step 2: Convert to fraction form
    505,559.09/757,927.46 = 345,230.73/x
  3. Step 3: Cross multiply
    505,559.09x = 757,927.46 × 345,230.73
  4. Step 4: Simplify right side
    505,559.09x = 261,659,851,165.92
  5. Step 5: Solve for x
    x = 261,659,851,165.92/505,559.09
  6. Step 6: Final answer
    x = 517,565.32

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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.