Home / 1,091,742.20-1,637,843.70-343,863.80

Finding the Fourth Proportional to 1,091,742.20, 1,637,843.70 and 343,863.80

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Solution

The fourth proportional to 1,091,742.20, 1,637,843.70 and 343,863.80 is: 515,868.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,742.20 : 1,637,843.70 = 343,863.80 : x
  2. Step 2: Convert to fraction form
    1,091,742.20/1,637,843.70 = 343,863.80/x
  3. Step 3: Cross multiply
    1,091,742.20x = 1,637,843.70 × 343,863.80
  4. Step 4: Simplify right side
    1,091,742.20x = 563,195,158,488.06
  5. Step 5: Solve for x
    x = 563,195,158,488.06/1,091,742.20
  6. Step 6: Final answer
    x = 515,868.27

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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.