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Finding the Fourth Proportional to 505,680.60, 758,010.60 and 252,571.80

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Solution

The fourth proportional to 505,680.60, 758,010.60 and 252,571.80 is: 378,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,680.60 : 758,010.60 = 252,571.80 : x
  2. Step 2: Convert to fraction form
    505,680.60/758,010.60 = 252,571.80/x
  3. Step 3: Cross multiply
    505,680.60x = 758,010.60 × 252,571.80
  4. Step 4: Simplify right side
    505,680.60x = 191,452,101,661.08
  5. Step 5: Solve for x
    x = 191,452,101,661.08/505,680.60
  6. Step 6: Final answer
    x = 378,602.82

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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.