Home / 2,180,684-3,009,020.96-1,309,334.64

Finding the Fourth Proportional to 2,180,684, 3,009,020.96 and 1,309,334.64

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Solution

The fourth proportional to 2,180,684, 3,009,020.96 and 1,309,334.64 is: 1,806,687.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,180,684 : 3,009,020.96 = 1,309,334.64 : x
  2. Step 2: Convert to fraction form
    2,180,684/3,009,020.96 = 1,309,334.64/x
  3. Step 3: Cross multiply
    2,180,684x = 3,009,020.96 × 1,309,334.64
  4. Step 4: Simplify right side
    2,180,684x = 3,939,815,375,414.05
  5. Step 5: Solve for x
    x = 3,939,815,375,414.05/2,180,684
  6. Step 6: Final answer
    x = 1,806,687.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.