Home / 1,211,662.38-1,672,072.38-660,383.04

Finding the Fourth Proportional to 1,211,662.38, 1,672,072.38 and 660,383.04

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Solution

The fourth proportional to 1,211,662.38, 1,672,072.38 and 660,383.04 is: 911,316.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,662.38 : 1,672,072.38 = 660,383.04 : x
  2. Step 2: Convert to fraction form
    1,211,662.38/1,672,072.38 = 660,383.04/x
  3. Step 3: Cross multiply
    1,211,662.38x = 1,672,072.38 × 660,383.04
  4. Step 4: Simplify right side
    1,211,662.38x = 1,104,208,241,404.44
  5. Step 5: Solve for x
    x = 1,104,208,241,404.44/1,211,662.38
  6. Step 6: Final answer
    x = 911,316.77

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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.