Home / 2,638,917.28-3,641,690.64-1,431,667.36

Finding the Fourth Proportional to 2,638,917.28, 3,641,690.64 and 1,431,667.36

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Solution

The fourth proportional to 2,638,917.28, 3,641,690.64 and 1,431,667.36 is: 1,975,692.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,638,917.28 : 3,641,690.64 = 1,431,667.36 : x
  2. Step 2: Convert to fraction form
    2,638,917.28/3,641,690.64 = 1,431,667.36/x
  3. Step 3: Cross multiply
    2,638,917.28x = 3,641,690.64 × 1,431,667.36
  4. Step 4: Simplify right side
    2,638,917.28x = 5,213,689,624,505.51
  5. Step 5: Solve for x
    x = 5,213,689,624,505.51/2,638,917.28
  6. Step 6: Final answer
    x = 1,975,692.71

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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.