Home / 872,843.20-1,309,264.80-852,107.20

Finding the Fourth Proportional to 872,843.20, 1,309,264.80 and 852,107.20

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Solution

The fourth proportional to 872,843.20, 1,309,264.80 and 852,107.20 is: 1,278,160.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,843.20 : 1,309,264.80 = 852,107.20 : x
  2. Step 2: Convert to fraction form
    872,843.20/1,309,264.80 = 852,107.20/x
  3. Step 3: Cross multiply
    872,843.20x = 1,309,264.80 × 852,107.20
  4. Step 4: Simplify right side
    872,843.20x = 1,115,633,962,786.56
  5. Step 5: Solve for x
    x = 1,115,633,962,786.56/872,843.20
  6. Step 6: Final answer
    x = 1,278,160.80

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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.