Home / 2,190,919-3,023,447.58-1,224,215.80

Finding the Fourth Proportional to 2,190,919, 3,023,447.58 and 1,224,215.80

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Solution

The fourth proportional to 2,190,919, 3,023,447.58 and 1,224,215.80 is: 1,689,406.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,919 : 3,023,447.58 = 1,224,215.80 : x
  2. Step 2: Convert to fraction form
    2,190,919/3,023,447.58 = 1,224,215.80/x
  3. Step 3: Cross multiply
    2,190,919x = 3,023,447.58 × 1,224,215.80
  4. Step 4: Simplify right side
    2,190,919x = 3,701,352,297,907.76
  5. Step 5: Solve for x
    x = 3,701,352,297,907.76/2,190,919
  6. Step 6: Final answer
    x = 1,689,406.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.