Home / 2,190,000.56-3,021,761.83-1,222,982.06

Finding the Fourth Proportional to 2,190,000.56, 3,021,761.83 and 1,222,982.06

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Solution

The fourth proportional to 2,190,000.56, 3,021,761.83 and 1,222,982.06 is: 1,687,470.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,000.56 : 3,021,761.83 = 1,222,982.06 : x
  2. Step 2: Convert to fraction form
    2,190,000.56/3,021,761.83 = 1,222,982.06/x
  3. Step 3: Cross multiply
    2,190,000.56x = 3,021,761.83 × 1,222,982.06
  4. Step 4: Simplify right side
    2,190,000.56x = 3,695,560,507,682.77
  5. Step 5: Solve for x
    x = 3,695,560,507,682.77/2,190,000.56
  6. Step 6: Final answer
    x = 1,687,470.12

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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.