Home / 1,245,745.14-1,861,791.20-909,493.89

Finding the Fourth Proportional to 1,245,745.14, 1,861,791.20 and 909,493.89

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Solution

The fourth proportional to 1,245,745.14, 1,861,791.20 and 909,493.89 is: 1,359,256.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,245,745.14 : 1,861,791.20 = 909,493.89 : x
  2. Step 2: Convert to fraction form
    1,245,745.14/1,861,791.20 = 909,493.89/x
  3. Step 3: Cross multiply
    1,245,745.14x = 1,861,791.20 × 909,493.89
  4. Step 4: Simplify right side
    1,245,745.14x = 1,693,287,716,308.30
  5. Step 5: Solve for x
    x = 1,693,287,716,308.30/1,245,745.14
  6. Step 6: Final answer
    x = 1,359,256.93

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.