Home / 2,239,128.81-3,089,997.99-1,220,533.56

Finding the Fourth Proportional to 2,239,128.81, 3,089,997.99 and 1,220,533.56

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Solution

The fourth proportional to 2,239,128.81, 3,089,997.99 and 1,220,533.56 is: 1,684,336.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239,128.81 : 3,089,997.99 = 1,220,533.56 : x
  2. Step 2: Convert to fraction form
    2,239,128.81/3,089,997.99 = 1,220,533.56/x
  3. Step 3: Cross multiply
    2,239,128.81x = 3,089,997.99 × 1,220,533.56
  4. Step 4: Simplify right side
    2,239,128.81x = 3,771,446,247,127.55
  5. Step 5: Solve for x
    x = 3,771,446,247,127.55/2,239,128.81
  6. Step 6: Final answer
    x = 1,684,336.44

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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.