Home / 851,990.32-1,278,231.18-275,600.80

Finding the Fourth Proportional to 851,990.32, 1,278,231.18 and 275,600.80

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Solution

The fourth proportional to 851,990.32, 1,278,231.18 and 275,600.80 is: 413,480.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,990.32 : 1,278,231.18 = 275,600.80 : x
  2. Step 2: Convert to fraction form
    851,990.32/1,278,231.18 = 275,600.80/x
  3. Step 3: Cross multiply
    851,990.32x = 1,278,231.18 × 275,600.80
  4. Step 4: Simplify right side
    851,990.32x = 352,281,535,792.94
  5. Step 5: Solve for x
    x = 352,281,535,792.94/851,990.32
  6. Step 6: Final answer
    x = 413,480.68

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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.