Home / 2,617,403.78-3,926,105.94-820,287.02

Finding the Fourth Proportional to 2,617,403.78, 3,926,105.94 and 820,287.02

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Solution

The fourth proportional to 2,617,403.78, 3,926,105.94 and 820,287.02 is: 1,230,430.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,617,403.78 : 3,926,105.94 = 820,287.02 : x
  2. Step 2: Convert to fraction form
    2,617,403.78/3,926,105.94 = 820,287.02/x
  3. Step 3: Cross multiply
    2,617,403.78x = 3,926,105.94 × 820,287.02
  4. Step 4: Simplify right side
    2,617,403.78x = 3,220,533,741,726.90
  5. Step 5: Solve for x
    x = 3,220,533,741,726.90/2,617,403.78
  6. Step 6: Final answer
    x = 1,230,430.61

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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.