Home / 2,617,515.10-3,926,321.86-820,358.79

Finding the Fourth Proportional to 2,617,515.10, 3,926,321.86 and 820,358.79

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Solution

The fourth proportional to 2,617,515.10, 3,926,321.86 and 820,358.79 is: 1,230,553.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617,515.10 : 3,926,321.86 = 820,358.79 : x
  2. Step 2: Convert to fraction form
    2,617,515.10/3,926,321.86 = 820,358.79/x
  3. Step 3: Cross multiply
    2,617,515.10x = 3,926,321.86 × 820,358.79
  4. Step 4: Simplify right side
    2,617,515.10x = 3,220,992,650,220.15
  5. Step 5: Solve for x
    x = 3,220,992,650,220.15/2,617,515.10
  6. Step 6: Final answer
    x = 1,230,553.61

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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.