Home / 451,409.28-677,003.52-135,780.48

Finding the Fourth Proportional to 451,409.28, 677,003.52 and 135,780.48

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Solution

The fourth proportional to 451,409.28, 677,003.52 and 135,780.48 is: 203,637.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,409.28 : 677,003.52 = 135,780.48 : x
  2. Step 2: Convert to fraction form
    451,409.28/677,003.52 = 135,780.48/x
  3. Step 3: Cross multiply
    451,409.28x = 677,003.52 × 135,780.48
  4. Step 4: Simplify right side
    451,409.28x = 91,923,862,907.29
  5. Step 5: Solve for x
    x = 91,923,862,907.29/451,409.28
  6. Step 6: Final answer
    x = 203,637.51

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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.