Home / 718,736.20-1,078,233.90-298,054.60

Finding the Fourth Proportional to 718,736.20, 1,078,233.90 and 298,054.60

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Solution

The fourth proportional to 718,736.20, 1,078,233.90 and 298,054.60 is: 447,135.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,736.20 : 1,078,233.90 = 298,054.60 : x
  2. Step 2: Convert to fraction form
    718,736.20/1,078,233.90 = 298,054.60/x
  3. Step 3: Cross multiply
    718,736.20x = 1,078,233.90 × 298,054.60
  4. Step 4: Simplify right side
    718,736.20x = 321,372,573,770.94
  5. Step 5: Solve for x
    x = 321,372,573,770.94/718,736.20
  6. Step 6: Final answer
    x = 447,135.64

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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.