Home / 2,101,619.80-3,153,207.30-681,722.20

Finding the Fourth Proportional to 2,101,619.80, 3,153,207.30 and 681,722.20

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Solution

The fourth proportional to 2,101,619.80, 3,153,207.30 and 681,722.20 is: 1,022,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,101,619.80 : 3,153,207.30 = 681,722.20 : x
  2. Step 2: Convert to fraction form
    2,101,619.80/3,153,207.30 = 681,722.20/x
  3. Step 3: Cross multiply
    2,101,619.80x = 3,153,207.30 × 681,722.20
  4. Step 4: Simplify right side
    2,101,619.80x = 2,149,611,417,612.06
  5. Step 5: Solve for x
    x = 2,149,611,417,612.06/2,101,619.80
  6. Step 6: Final answer
    x = 1,022,835.54

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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.