Home / 505,839.60-758,864.16-206,321.04

Finding the Fourth Proportional to 505,839.60, 758,864.16 and 206,321.04

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Solution

The fourth proportional to 505,839.60, 758,864.16 and 206,321.04 is: 309,524.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,839.60 : 758,864.16 = 206,321.04 : x
  2. Step 2: Convert to fraction form
    505,839.60/758,864.16 = 206,321.04/x
  3. Step 3: Cross multiply
    505,839.60x = 758,864.16 × 206,321.04
  4. Step 4: Simplify right side
    505,839.60x = 156,569,642,709.93
  5. Step 5: Solve for x
    x = 156,569,642,709.93/505,839.60
  6. Step 6: Final answer
    x = 309,524.29

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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.