Home / 3,078,789.64-4,248,735.86-1,720,662.60

Finding the Fourth Proportional to 3,078,789.64, 4,248,735.86 and 1,720,662.60

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Solution

The fourth proportional to 3,078,789.64, 4,248,735.86 and 1,720,662.60 is: 2,374,517.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078,789.64 : 4,248,735.86 = 1,720,662.60 : x
  2. Step 2: Convert to fraction form
    3,078,789.64/4,248,735.86 = 1,720,662.60/x
  3. Step 3: Cross multiply
    3,078,789.64x = 4,248,735.86 × 1,720,662.60
  4. Step 4: Simplify right side
    3,078,789.64x = 7,310,640,891,580.84
  5. Step 5: Solve for x
    x = 7,310,640,891,580.84/3,078,789.64
  6. Step 6: Final answer
    x = 2,374,517.83

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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.