Home / 1,993,821.06-2,991,203.01-645,981.48

Finding the Fourth Proportional to 1,993,821.06, 2,991,203.01 and 645,981.48

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Solution

The fourth proportional to 1,993,821.06, 2,991,203.01 and 645,981.48 is: 969,124.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,821.06 : 2,991,203.01 = 645,981.48 : x
  2. Step 2: Convert to fraction form
    1,993,821.06/2,991,203.01 = 645,981.48/x
  3. Step 3: Cross multiply
    1,993,821.06x = 2,991,203.01 × 645,981.48
  4. Step 4: Simplify right side
    1,993,821.06x = 1,932,261,747,380.25
  5. Step 5: Solve for x
    x = 1,932,261,747,380.25/1,993,821.06
  6. Step 6: Final answer
    x = 969,124.96

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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.