Home / 2,140,057.44-3,209,153.00-809,428.32

Finding the Fourth Proportional to 2,140,057.44, 3,209,153.00 and 809,428.32

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Solution

The fourth proportional to 2,140,057.44, 3,209,153.00 and 809,428.32 is: 1,213,789.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,057.44 : 3,209,153.00 = 809,428.32 : x
  2. Step 2: Convert to fraction form
    2,140,057.44/3,209,153.00 = 809,428.32/x
  3. Step 3: Cross multiply
    2,140,057.44x = 3,209,153.00 × 809,428.32
  4. Step 4: Simplify right side
    2,140,057.44x = 2,597,579,317,365.82
  5. Step 5: Solve for x
    x = 2,597,579,317,365.82/2,140,057.44
  6. Step 6: Final answer
    x = 1,213,789.53

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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.