Home / 481,381.12-722,074.88-126,392.32

Finding the Fourth Proportional to 481,381.12, 722,074.88 and 126,392.32

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Solution

The fourth proportional to 481,381.12, 722,074.88 and 126,392.32 is: 189,589.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,381.12 : 722,074.88 = 126,392.32 : x
  2. Step 2: Convert to fraction form
    481,381.12/722,074.88 = 126,392.32/x
  3. Step 3: Cross multiply
    481,381.12x = 722,074.88 × 126,392.32
  4. Step 4: Simplify right side
    481,381.12x = 91,264,719,296.92
  5. Step 5: Solve for x
    x = 91,264,719,296.92/481,381.12
  6. Step 6: Final answer
    x = 189,589.32

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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.