Home / 774,785.88-1,162,245.60-213,820.38

Finding the Fourth Proportional to 774,785.88, 1,162,245.60 and 213,820.38

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Solution

The fourth proportional to 774,785.88, 1,162,245.60 and 213,820.38 is: 320,749.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,785.88 : 1,162,245.60 = 213,820.38 : x
  2. Step 2: Convert to fraction form
    774,785.88/1,162,245.60 = 213,820.38/x
  3. Step 3: Cross multiply
    774,785.88x = 1,162,245.60 × 213,820.38
  4. Step 4: Simplify right side
    774,785.88x = 248,511,795,845.33
  5. Step 5: Solve for x
    x = 248,511,795,845.33/774,785.88
  6. Step 6: Final answer
    x = 320,749.00

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1.5x scale

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.