Home / 2,140,611.68-3,204,618.96-1,428,874.40

Finding the Fourth Proportional to 2,140,611.68, 3,204,618.96 and 1,428,874.40

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Solution

The fourth proportional to 2,140,611.68, 3,204,618.96 and 1,428,874.40 is: 2,139,107.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,140,611.68 : 3,204,618.96 = 1,428,874.40 : x
  2. Step 2: Convert to fraction form
    2,140,611.68/3,204,618.96 = 1,428,874.40/x
  3. Step 3: Cross multiply
    2,140,611.68x = 3,204,618.96 × 1,428,874.40
  4. Step 4: Simplify right side
    2,140,611.68x = 4,578,997,993,698.62
  5. Step 5: Solve for x
    x = 4,578,997,993,698.62/2,140,611.68
  6. Step 6: Final answer
    x = 2,139,107.26

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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.