Home / 851,989.32-1,278,229.68-275,599.80

Finding the Fourth Proportional to 851,989.32, 1,278,229.68 and 275,599.80

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Solution

The fourth proportional to 851,989.32, 1,278,229.68 and 275,599.80 is: 413,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,989.32 : 1,278,229.68 = 275,599.80 : x
  2. Step 2: Convert to fraction form
    851,989.32/1,278,229.68 = 275,599.80/x
  3. Step 3: Cross multiply
    851,989.32x = 1,278,229.68 × 275,599.80
  4. Step 4: Simplify right side
    851,989.32x = 352,279,844,162.06
  5. Step 5: Solve for x
    x = 352,279,844,162.06/851,989.32
  6. Step 6: Final answer
    x = 413,479.18

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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.