Home / 1,987,961.40-2,974,943.70-1,819,999.80

Finding the Fourth Proportional to 1,987,961.40, 2,974,943.70 and 1,819,999.80

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Solution

The fourth proportional to 1,987,961.40, 2,974,943.70 and 1,819,999.80 is: 2,723,592.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,961.40 : 2,974,943.70 = 1,819,999.80 : x
  2. Step 2: Convert to fraction form
    1,987,961.40/2,974,943.70 = 1,819,999.80/x
  3. Step 3: Cross multiply
    1,987,961.40x = 2,974,943.70 × 1,819,999.80
  4. Step 4: Simplify right side
    1,987,961.40x = 5,414,396,939,011.26
  5. Step 5: Solve for x
    x = 5,414,396,939,011.26/1,987,961.40
  6. Step 6: Final answer
    x = 2,723,592.59

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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.