Home / 2,138,975.20-3,208,344.72-718,884.64

Finding the Fourth Proportional to 2,138,975.20, 3,208,344.72 and 718,884.64

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Solution

The fourth proportional to 2,138,975.20, 3,208,344.72 and 718,884.64 is: 1,078,287.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,975.20 : 3,208,344.72 = 718,884.64 : x
  2. Step 2: Convert to fraction form
    2,138,975.20/3,208,344.72 = 718,884.64/x
  3. Step 3: Cross multiply
    2,138,975.20x = 3,208,344.72 × 718,884.64
  4. Step 4: Simplify right side
    2,138,975.20x = 2,306,429,739,033.10
  5. Step 5: Solve for x
    x = 2,306,429,739,033.10/2,138,975.20
  6. Step 6: Final answer
    x = 1,078,287.27

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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.