Home / 1,226,418.21-1,692,457.11-682,682.45

Finding the Fourth Proportional to 1,226,418.21, 1,692,457.11 and 682,682.45

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Solution

The fourth proportional to 1,226,418.21, 1,692,457.11 and 682,682.45 is: 942,101.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,418.21 : 1,692,457.11 = 682,682.45 : x
  2. Step 2: Convert to fraction form
    1,226,418.21/1,692,457.11 = 682,682.45/x
  3. Step 3: Cross multiply
    1,226,418.21x = 1,692,457.11 × 682,682.45
  4. Step 4: Simplify right side
    1,226,418.21x = 1,155,410,757,912.43
  5. Step 5: Solve for x
    x = 1,155,410,757,912.43/1,226,418.21
  6. Step 6: Final answer
    x = 942,101.76

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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.