Home / 2,113,297.20-3,171,695.40-977,806.80

Finding the Fourth Proportional to 2,113,297.20, 3,171,695.40 and 977,806.80

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Solution

The fourth proportional to 2,113,297.20, 3,171,695.40 and 977,806.80 is: 1,467,519.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113,297.20 : 3,171,695.40 = 977,806.80 : x
  2. Step 2: Convert to fraction form
    2,113,297.20/3,171,695.40 = 977,806.80/x
  3. Step 3: Cross multiply
    2,113,297.20x = 3,171,695.40 × 977,806.80
  4. Step 4: Simplify right side
    2,113,297.20x = 3,101,305,329,648.72
  5. Step 5: Solve for x
    x = 3,101,305,329,648.72/2,113,297.20
  6. Step 6: Final answer
    x = 1,467,519.73

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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.