Home / 1,388,979.18-2,093,879.40-1,296,392.22

Finding the Fourth Proportional to 1,388,979.18, 2,093,879.40 and 1,296,392.22

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Solution

The fourth proportional to 1,388,979.18, 2,093,879.40 and 1,296,392.22 is: 1,954,305.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,979.18 : 2,093,879.40 = 1,296,392.22 : x
  2. Step 2: Convert to fraction form
    1,388,979.18/2,093,879.40 = 1,296,392.22/x
  3. Step 3: Cross multiply
    1,388,979.18x = 2,093,879.40 × 1,296,392.22
  4. Step 4: Simplify right side
    1,388,979.18x = 2,714,488,963,778.27
  5. Step 5: Solve for x
    x = 2,714,488,963,778.27/1,388,979.18
  6. Step 6: Final answer
    x = 1,954,305.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.