Home / 1,226,621.77-1,692,738.11-682,745.89

Finding the Fourth Proportional to 1,226,621.77, 1,692,738.11 and 682,745.89

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Solution

The fourth proportional to 1,226,621.77, 1,692,738.11 and 682,745.89 is: 942,189.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,621.77 : 1,692,738.11 = 682,745.89 : x
  2. Step 2: Convert to fraction form
    1,226,621.77/1,692,738.11 = 682,745.89/x
  3. Step 3: Cross multiply
    1,226,621.77x = 1,692,738.11 × 682,745.89
  4. Step 4: Simplify right side
    1,226,621.77x = 1,155,709,987,448.87
  5. Step 5: Solve for x
    x = 1,155,709,987,448.87/1,226,621.77
  6. Step 6: Final answer
    x = 942,189.37

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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.