Home / 2,190,181.45-3,022,418.24-1,223,325.85

Finding the Fourth Proportional to 2,190,181.45, 3,022,418.24 and 1,223,325.85

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Solution

The fourth proportional to 2,190,181.45, 3,022,418.24 and 1,223,325.85 is: 1,688,171.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,181.45 : 3,022,418.24 = 1,223,325.85 : x
  2. Step 2: Convert to fraction form
    2,190,181.45/3,022,418.24 = 1,223,325.85/x
  3. Step 3: Cross multiply
    2,190,181.45x = 3,022,418.24 × 1,223,325.85
  4. Step 4: Simplify right side
    2,190,181.45x = 3,697,402,356,386.88
  5. Step 5: Solve for x
    x = 3,697,402,356,386.88/2,190,181.45
  6. Step 6: Final answer
    x = 1,688,171.71

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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.