Home / 865,119.36-1,289,682.24-851,485.44

Finding the Fourth Proportional to 865,119.36, 1,289,682.24 and 851,485.44

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Solution

The fourth proportional to 865,119.36, 1,289,682.24 and 851,485.44 is: 1,269,357.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,119.36 : 1,289,682.24 = 851,485.44 : x
  2. Step 2: Convert to fraction form
    865,119.36/1,289,682.24 = 851,485.44/x
  3. Step 3: Cross multiply
    865,119.36x = 1,289,682.24 × 851,485.44
  4. Step 4: Simplify right side
    865,119.36x = 1,098,145,649,586.59
  5. Step 5: Solve for x
    x = 1,098,145,649,586.59/865,119.36
  6. Step 6: Final answer
    x = 1,269,357.39

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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.