Home / 451,421.36-677,076.66-261,984.80

Finding the Fourth Proportional to 451,421.36, 677,076.66 and 261,984.80

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Solution

The fourth proportional to 451,421.36, 677,076.66 and 261,984.80 is: 392,945.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,421.36 : 677,076.66 = 261,984.80 : x
  2. Step 2: Convert to fraction form
    451,421.36/677,076.66 = 261,984.80/x
  3. Step 3: Cross multiply
    451,421.36x = 677,076.66 × 261,984.80
  4. Step 4: Simplify right side
    451,421.36x = 177,383,793,354.77
  5. Step 5: Solve for x
    x = 177,383,793,354.77/451,421.36
  6. Step 6: Final answer
    x = 392,945.06

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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.