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Finding the Fourth Proportional to 883,129.80, 1,324,694.70 and 505,216.20

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Solution

The fourth proportional to 883,129.80, 1,324,694.70 and 505,216.20 is: 757,824.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,129.80 : 1,324,694.70 = 505,216.20 : x
  2. Step 2: Convert to fraction form
    883,129.80/1,324,694.70 = 505,216.20/x
  3. Step 3: Cross multiply
    883,129.80x = 1,324,694.70 × 505,216.20
  4. Step 4: Simplify right side
    883,129.80x = 669,257,222,494.14
  5. Step 5: Solve for x
    x = 669,257,222,494.14/883,129.80
  6. Step 6: Final answer
    x = 757,824.30

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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.