Home / 2,138,499.36-3,208,043.88-718,665.48

Finding the Fourth Proportional to 2,138,499.36, 3,208,043.88 and 718,665.48

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Solution

The fourth proportional to 2,138,499.36, 3,208,043.88 and 718,665.48 is: 1,078,097.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,499.36 : 3,208,043.88 = 718,665.48 : x
  2. Step 2: Convert to fraction form
    2,138,499.36/3,208,043.88 = 718,665.48/x
  3. Step 3: Cross multiply
    2,138,499.36x = 3,208,043.88 × 718,665.48
  4. Step 4: Simplify right side
    2,138,499.36x = 2,305,510,394,881.26
  5. Step 5: Solve for x
    x = 2,305,510,394,881.26/2,138,499.36
  6. Step 6: Final answer
    x = 1,078,097.30

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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.