Home / 1,995,759.90-2,993,639.85-1,978,045.20

Finding the Fourth Proportional to 1,995,759.90, 2,993,639.85 and 1,978,045.20

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Solution

The fourth proportional to 1,995,759.90, 2,993,639.85 and 1,978,045.20 is: 2,967,067.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995,759.90 : 2,993,639.85 = 1,978,045.20 : x
  2. Step 2: Convert to fraction form
    1,995,759.90/2,993,639.85 = 1,978,045.20/x
  3. Step 3: Cross multiply
    1,995,759.90x = 2,993,639.85 × 1,978,045.20
  4. Step 4: Simplify right side
    1,995,759.90x = 5,921,554,935,821.22
  5. Step 5: Solve for x
    x = 5,921,554,935,821.22/1,995,759.90
  6. Step 6: Final answer
    x = 2,967,067.80

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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.