Home / 1,611,272.87-2,223,512.16-886,120.58

Finding the Fourth Proportional to 1,611,272.87, 2,223,512.16 and 886,120.58

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Solution

The fourth proportional to 1,611,272.87, 2,223,512.16 and 886,120.58 is: 1,222,821.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611,272.87 : 2,223,512.16 = 886,120.58 : x
  2. Step 2: Convert to fraction form
    1,611,272.87/2,223,512.16 = 886,120.58/x
  3. Step 3: Cross multiply
    1,611,272.87x = 2,223,512.16 × 886,120.58
  4. Step 4: Simplify right side
    1,611,272.87x = 1,970,299,870,415.74
  5. Step 5: Solve for x
    x = 1,970,299,870,415.74/1,611,272.87
  6. Step 6: Final answer
    x = 1,222,821.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.