Home / 1,263,662.78-1,744,168.01-720,121.05

Finding the Fourth Proportional to 1,263,662.78, 1,744,168.01 and 720,121.05

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Solution

The fourth proportional to 1,263,662.78, 1,744,168.01 and 720,121.05 is: 993,945.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,662.78 : 1,744,168.01 = 720,121.05 : x
  2. Step 2: Convert to fraction form
    1,263,662.78/1,744,168.01 = 720,121.05/x
  3. Step 3: Cross multiply
    1,263,662.78x = 1,744,168.01 × 720,121.05
  4. Step 4: Simplify right side
    1,263,662.78x = 1,256,012,095,137.01
  5. Step 5: Solve for x
    x = 1,256,012,095,137.01/1,263,662.78
  6. Step 6: Final answer
    x = 993,945.63

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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.