Home / 2,642,458.62-3,964,308.54-820,730.55

Finding the Fourth Proportional to 2,642,458.62, 3,964,308.54 and 820,730.55

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Solution

The fourth proportional to 2,642,458.62, 3,964,308.54 and 820,730.55 is: 1,231,288.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642,458.62 : 3,964,308.54 = 820,730.55 : x
  2. Step 2: Convert to fraction form
    2,642,458.62/3,964,308.54 = 820,730.55/x
  3. Step 3: Cross multiply
    2,642,458.62x = 3,964,308.54 × 820,730.55
  4. Step 4: Simplify right side
    2,642,458.62x = 3,253,629,128,403.90
  5. Step 5: Solve for x
    x = 3,253,629,128,403.90/2,642,458.62
  6. Step 6: Final answer
    x = 1,231,288.58

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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.