Home / 810,548.73-1,214,620.76-330,189.72

Finding the Fourth Proportional to 810,548.73, 1,214,620.76 and 330,189.72

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Solution

The fourth proportional to 810,548.73, 1,214,620.76 and 330,189.72 is: 494,794.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,548.73 : 1,214,620.76 = 330,189.72 : x
  2. Step 2: Convert to fraction form
    810,548.73/1,214,620.76 = 330,189.72/x
  3. Step 3: Cross multiply
    810,548.73x = 1,214,620.76 × 330,189.72
  4. Step 4: Simplify right side
    810,548.73x = 401,055,288,650.59
  5. Step 5: Solve for x
    x = 401,055,288,650.59/810,548.73
  6. Step 6: Final answer
    x = 494,794.79

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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.