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Finding the Fourth Proportional to 550,080.80, 825,121.20 and 410,112.80

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Solution

The fourth proportional to 550,080.80, 825,121.20 and 410,112.80 is: 615,169.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,080.80 : 825,121.20 = 410,112.80 : x
  2. Step 2: Convert to fraction form
    550,080.80/825,121.20 = 410,112.80/x
  3. Step 3: Cross multiply
    550,080.80x = 825,121.20 × 410,112.80
  4. Step 4: Simplify right side
    550,080.80x = 338,392,765,671.36
  5. Step 5: Solve for x
    x = 338,392,765,671.36/550,080.80
  6. Step 6: Final answer
    x = 615,169.20

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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.