Home / 2,081,208.20-3,121,034.70-818,774.60

Finding the Fourth Proportional to 2,081,208.20, 3,121,034.70 and 818,774.60

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Solution

The fourth proportional to 2,081,208.20, 3,121,034.70 and 818,774.60 is: 1,227,855.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,081,208.20 : 3,121,034.70 = 818,774.60 : x
  2. Step 2: Convert to fraction form
    2,081,208.20/3,121,034.70 = 818,774.60/x
  3. Step 3: Cross multiply
    2,081,208.20x = 3,121,034.70 × 818,774.60
  4. Step 4: Simplify right side
    2,081,208.20x = 2,555,423,938,078.62
  5. Step 5: Solve for x
    x = 2,555,423,938,078.62/2,081,208.20
  6. Step 6: Final answer
    x = 1,227,855.98

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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.