Home / 2,101,219.60-3,150,907.80-838,627.60

Finding the Fourth Proportional to 2,101,219.60, 3,150,907.80 and 838,627.60

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Solution

The fourth proportional to 2,101,219.60, 3,150,907.80 and 838,627.60 is: 1,257,573.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101,219.60 : 3,150,907.80 = 838,627.60 : x
  2. Step 2: Convert to fraction form
    2,101,219.60/3,150,907.80 = 838,627.60/x
  3. Step 3: Cross multiply
    2,101,219.60x = 3,150,907.80 × 838,627.60
  4. Step 4: Simplify right side
    2,101,219.60x = 2,642,438,246,135.28
  5. Step 5: Solve for x
    x = 2,642,438,246,135.28/2,101,219.60
  6. Step 6: Final answer
    x = 1,257,573.58

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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.