Home / 1,872,028.20-2,808,042.30-1,021,722.60

Finding the Fourth Proportional to 1,872,028.20, 2,808,042.30 and 1,021,722.60

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Solution

The fourth proportional to 1,872,028.20, 2,808,042.30 and 1,021,722.60 is: 1,532,583.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872,028.20 : 2,808,042.30 = 1,021,722.60 : x
  2. Step 2: Convert to fraction form
    1,872,028.20/2,808,042.30 = 1,021,722.60/x
  3. Step 3: Cross multiply
    1,872,028.20x = 2,808,042.30 × 1,021,722.60
  4. Step 4: Simplify right side
    1,872,028.20x = 2,869,040,279,665.98
  5. Step 5: Solve for x
    x = 2,869,040,279,665.98/1,872,028.20
  6. Step 6: Final answer
    x = 1,532,583.90

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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.