Home / 2,189,780.77-3,021,459.19-1,222,762.27

Finding the Fourth Proportional to 2,189,780.77, 3,021,459.19 and 1,222,762.27

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Solution

The fourth proportional to 2,189,780.77, 3,021,459.19 and 1,222,762.27 is: 1,687,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,780.77 : 3,021,459.19 = 1,222,762.27 : x
  2. Step 2: Convert to fraction form
    2,189,780.77/3,021,459.19 = 1,222,762.27/x
  3. Step 3: Cross multiply
    2,189,780.77x = 3,021,459.19 × 1,222,762.27
  4. Step 4: Simplify right side
    2,189,780.77x = 3,694,526,297,876.76
  5. Step 5: Solve for x
    x = 3,694,526,297,876.76/2,189,780.77
  6. Step 6: Final answer
    x = 1,687,167.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.