Home / 3,128,919.64-4,317,910.86-1,698,135.64

Finding the Fourth Proportional to 3,128,919.64, 4,317,910.86 and 1,698,135.64

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Solution

The fourth proportional to 3,128,919.64, 4,317,910.86 and 1,698,135.64 is: 2,343,428.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,128,919.64 : 4,317,910.86 = 1,698,135.64 : x
  2. Step 2: Convert to fraction form
    3,128,919.64/4,317,910.86 = 1,698,135.64/x
  3. Step 3: Cross multiply
    3,128,919.64x = 4,317,910.86 × 1,698,135.64
  4. Step 4: Simplify right side
    3,128,919.64x = 7,332,398,321,709.05
  5. Step 5: Solve for x
    x = 7,332,398,321,709.05/3,128,919.64
  6. Step 6: Final answer
    x = 2,343,428.14

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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.