Home / 2,617,644.56-3,926,352.60-820,487

Finding the Fourth Proportional to 2,617,644.56, 3,926,352.60 and 820,487

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Solution

The fourth proportional to 2,617,644.56, 3,926,352.60 and 820,487 is: 1,230,694.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617,644.56 : 3,926,352.60 = 820,487 : x
  2. Step 2: Convert to fraction form
    2,617,644.56/3,926,352.60 = 820,487/x
  3. Step 3: Cross multiply
    2,617,644.56x = 3,926,352.60 × 820,487
  4. Step 4: Simplify right side
    2,617,644.56x = 3,221,521,265,716.20
  5. Step 5: Solve for x
    x = 3,221,521,265,716.20/2,617,644.56
  6. Step 6: Final answer
    x = 1,230,694.69

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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.