Home / 1,221,090.36-1,831,914.54-422,371.23

Finding the Fourth Proportional to 1,221,090.36, 1,831,914.54 and 422,371.23

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Solution

The fourth proportional to 1,221,090.36, 1,831,914.54 and 422,371.23 is: 633,653.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,090.36 : 1,831,914.54 = 422,371.23 : x
  2. Step 2: Convert to fraction form
    1,221,090.36/1,831,914.54 = 422,371.23/x
  3. Step 3: Cross multiply
    1,221,090.36x = 1,831,914.54 × 422,371.23
  4. Step 4: Simplify right side
    1,221,090.36x = 773,747,997,514.68
  5. Step 5: Solve for x
    x = 773,747,997,514.68/1,221,090.36
  6. Step 6: Final answer
    x = 633,653.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.