Home / 3,517,991.60-5,276,987.40-1,121,817.20

Finding the Fourth Proportional to 3,517,991.60, 5,276,987.40 and 1,121,817.20

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Solution

The fourth proportional to 3,517,991.60, 5,276,987.40 and 1,121,817.20 is: 1,682,725.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,517,991.60 : 5,276,987.40 = 1,121,817.20 : x
  2. Step 2: Convert to fraction form
    3,517,991.60/5,276,987.40 = 1,121,817.20/x
  3. Step 3: Cross multiply
    3,517,991.60x = 5,276,987.40 × 1,121,817.20
  4. Step 4: Simplify right side
    3,517,991.60x = 5,919,815,229,503.28
  5. Step 5: Solve for x
    x = 5,919,815,229,503.28/3,517,991.60
  6. Step 6: Final answer
    x = 1,682,725.80

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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.