Home / 2,087,556.21-2,880,778.85-1,228,171.83

Finding the Fourth Proportional to 2,087,556.21, 2,880,778.85 and 1,228,171.83

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Solution

The fourth proportional to 2,087,556.21, 2,880,778.85 and 1,228,171.83 is: 1,694,848.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,556.21 : 2,880,778.85 = 1,228,171.83 : x
  2. Step 2: Convert to fraction form
    2,087,556.21/2,880,778.85 = 1,228,171.83/x
  3. Step 3: Cross multiply
    2,087,556.21x = 2,880,778.85 × 1,228,171.83
  4. Step 4: Simplify right side
    2,087,556.21x = 3,538,091,419,691.66
  5. Step 5: Solve for x
    x = 3,538,091,419,691.66/2,087,556.21
  6. Step 6: Final answer
    x = 1,694,848.46

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1.5x scale

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.