Home / 2,190,178.68-3,022,414.74-1,223,322.72

Finding the Fourth Proportional to 2,190,178.68, 3,022,414.74 and 1,223,322.72

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Solution

The fourth proportional to 2,190,178.68, 3,022,414.74 and 1,223,322.72 is: 1,688,167.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,178.68 : 3,022,414.74 = 1,223,322.72 : x
  2. Step 2: Convert to fraction form
    2,190,178.68/3,022,414.74 = 1,223,322.72/x
  3. Step 3: Cross multiply
    2,190,178.68x = 3,022,414.74 × 1,223,322.72
  4. Step 4: Simplify right side
    2,190,178.68x = 3,697,388,620,704.89
  5. Step 5: Solve for x
    x = 3,697,388,620,704.89/2,190,178.68
  6. Step 6: Final answer
    x = 1,688,167.57

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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.