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Finding the Fourth Proportional to 1,993,145.60, 2,988,843.60 and 794,669.60

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Solution

The fourth proportional to 1,993,145.60, 2,988,843.60 and 794,669.60 is: 1,191,655.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,145.60 : 2,988,843.60 = 794,669.60 : x
  2. Step 2: Convert to fraction form
    1,993,145.60/2,988,843.60 = 794,669.60/x
  3. Step 3: Cross multiply
    1,993,145.60x = 2,988,843.60 × 794,669.60
  4. Step 4: Simplify right side
    1,993,145.60x = 2,375,143,148,074.56
  5. Step 5: Solve for x
    x = 2,375,143,148,074.56/1,993,145.60
  6. Step 6: Final answer
    x = 1,191,655.62

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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.