Home / 1,818,972.82-2,728,739.49-620,615.80

Finding the Fourth Proportional to 1,818,972.82, 2,728,739.49 and 620,615.80

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Solution

The fourth proportional to 1,818,972.82, 2,728,739.49 and 620,615.80 is: 931,019.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,818,972.82 : 2,728,739.49 = 620,615.80 : x
  2. Step 2: Convert to fraction form
    1,818,972.82/2,728,739.49 = 620,615.80/x
  3. Step 3: Cross multiply
    1,818,972.82x = 2,728,739.49 × 620,615.80
  4. Step 4: Simplify right side
    1,818,972.82x = 1,693,498,832,428.78
  5. Step 5: Solve for x
    x = 1,693,498,832,428.78/1,818,972.82
  6. Step 6: Final answer
    x = 931,019.32

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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.