Home / 3,616,186.78-5,424,310.58-920,512.45

Finding the Fourth Proportional to 3,616,186.78, 5,424,310.58 and 920,512.45

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Solution

The fourth proportional to 3,616,186.78, 5,424,310.58 and 920,512.45 is: 1,380,776.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,616,186.78 : 5,424,310.58 = 920,512.45 : x
  2. Step 2: Convert to fraction form
    3,616,186.78/5,424,310.58 = 920,512.45/x
  3. Step 3: Cross multiply
    3,616,186.78x = 5,424,310.58 × 920,512.45
  4. Step 4: Simplify right side
    3,616,186.78x = 4,993,145,421,556.72
  5. Step 5: Solve for x
    x = 4,993,145,421,556.72/3,616,186.78
  6. Step 6: Final answer
    x = 1,380,776.42

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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.