Home / 1,434,120.76-2,150,679.38-422,974.28

Finding the Fourth Proportional to 1,434,120.76, 2,150,679.38 and 422,974.28

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Solution

The fourth proportional to 1,434,120.76, 2,150,679.38 and 422,974.28 is: 634,313.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,434,120.76 : 2,150,679.38 = 422,974.28 : x
  2. Step 2: Convert to fraction form
    1,434,120.76/2,150,679.38 = 422,974.28/x
  3. Step 3: Cross multiply
    1,434,120.76x = 2,150,679.38 × 422,974.28
  4. Step 4: Simplify right side
    1,434,120.76x = 909,682,062,266.35
  5. Step 5: Solve for x
    x = 909,682,062,266.35/1,434,120.76
  6. Step 6: Final answer
    x = 634,313.43

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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.