Home / 1,921,115.68-2,882,171.22-1,021,817.20

Finding the Fourth Proportional to 1,921,115.68, 2,882,171.22 and 1,021,817.20

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Solution

The fourth proportional to 1,921,115.68, 2,882,171.22 and 1,021,817.20 is: 1,532,990.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,115.68 : 2,882,171.22 = 1,021,817.20 : x
  2. Step 2: Convert to fraction form
    1,921,115.68/2,882,171.22 = 1,021,817.20/x
  3. Step 3: Cross multiply
    1,921,115.68x = 2,882,171.22 × 1,021,817.20
  4. Step 4: Simplify right side
    1,921,115.68x = 2,945,052,125,940.98
  5. Step 5: Solve for x
    x = 2,945,052,125,940.98/1,921,115.68
  6. Step 6: Final answer
    x = 1,532,990.52

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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.