Home / 1,340,143.05-2,010,589.77-541,985.09

Finding the Fourth Proportional to 1,340,143.05, 2,010,589.77 and 541,985.09

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Solution

The fourth proportional to 1,340,143.05, 2,010,589.77 and 541,985.09 is: 813,129.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,143.05 : 2,010,589.77 = 541,985.09 : x
  2. Step 2: Convert to fraction form
    1,340,143.05/2,010,589.77 = 541,985.09/x
  3. Step 3: Cross multiply
    1,340,143.05x = 2,010,589.77 × 541,985.09
  4. Step 4: Simplify right side
    1,340,143.05x = 1,089,709,667,393.58
  5. Step 5: Solve for x
    x = 1,089,709,667,393.58/1,340,143.05
  6. Step 6: Final answer
    x = 813,129.37

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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.