Home / 821,819.45-1,232,729.19-222,780.57

Finding the Fourth Proportional to 821,819.45, 1,232,729.19 and 222,780.57

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Solution

The fourth proportional to 821,819.45, 1,232,729.19 and 222,780.57 is: 334,170.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,819.45 : 1,232,729.19 = 222,780.57 : x
  2. Step 2: Convert to fraction form
    821,819.45/1,232,729.19 = 222,780.57/x
  3. Step 3: Cross multiply
    821,819.45x = 1,232,729.19 × 222,780.57
  4. Step 4: Simplify right side
    821,819.45x = 274,628,111,603.84
  5. Step 5: Solve for x
    x = 274,628,111,603.84/821,819.45
  6. Step 6: Final answer
    x = 334,170.86

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1.5x scale

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.