Home / 2,138,797.80-3,208,682.70-718,997.40

Finding the Fourth Proportional to 2,138,797.80, 3,208,682.70 and 718,997.40

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Solution

The fourth proportional to 2,138,797.80, 3,208,682.70 and 718,997.40 is: 1,078,659.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,797.80 : 3,208,682.70 = 718,997.40 : x
  2. Step 2: Convert to fraction form
    2,138,797.80/3,208,682.70 = 718,997.40/x
  3. Step 3: Cross multiply
    2,138,797.80x = 3,208,682.70 × 718,997.40
  4. Step 4: Simplify right side
    2,138,797.80x = 2,307,034,518,724.98
  5. Step 5: Solve for x
    x = 2,307,034,518,724.98/2,138,797.80
  6. Step 6: Final answer
    x = 1,078,659.48

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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.