Home / 451,422.36-677,078.16-261,985.80

Finding the Fourth Proportional to 451,422.36, 677,078.16 and 261,985.80

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Solution

The fourth proportional to 451,422.36, 677,078.16 and 261,985.80 is: 392,946.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,422.36 : 677,078.16 = 261,985.80 : x
  2. Step 2: Convert to fraction form
    451,422.36/677,078.16 = 261,985.80/x
  3. Step 3: Cross multiply
    451,422.36x = 677,078.16 × 261,985.80
  4. Step 4: Simplify right side
    451,422.36x = 177,384,863,410.13
  5. Step 5: Solve for x
    x = 177,384,863,410.13/451,422.36
  6. Step 6: Final answer
    x = 392,946.56

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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.