Home / 1,294,987.80-1,940,408.10-820,824.60

Finding the Fourth Proportional to 1,294,987.80, 1,940,408.10 and 820,824.60

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Solution

The fourth proportional to 1,294,987.80, 1,940,408.10 and 820,824.60 is: 1,229,922.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,294,987.80 : 1,940,408.10 = 820,824.60 : x
  2. Step 2: Convert to fraction form
    1,294,987.80/1,940,408.10 = 820,824.60/x
  3. Step 3: Cross multiply
    1,294,987.80x = 1,940,408.10 × 820,824.60
  4. Step 4: Simplify right side
    1,294,987.80x = 1,592,734,702,519.26
  5. Step 5: Solve for x
    x = 1,592,734,702,519.26/1,294,987.80
  6. Step 6: Final answer
    x = 1,229,922.55

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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.