Home / 3,109,623.21-4,289,813.87-1,819,672.29

Finding the Fourth Proportional to 3,109,623.21, 4,289,813.87 and 1,819,672.29

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Solution

The fourth proportional to 3,109,623.21, 4,289,813.87 and 1,819,672.29 is: 2,510,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,109,623.21 : 4,289,813.87 = 1,819,672.29 : x
  2. Step 2: Convert to fraction form
    3,109,623.21/4,289,813.87 = 1,819,672.29/x
  3. Step 3: Cross multiply
    3,109,623.21x = 4,289,813.87 × 1,819,672.29
  4. Step 4: Simplify right side
    3,109,623.21x = 7,806,055,419,398.30
  5. Step 5: Solve for x
    x = 7,806,055,419,398.30/3,109,623.21
  6. Step 6: Final answer
    x = 2,510,289.80

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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.