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Finding the Fourth Proportional to 321,048.99, 481,573.49 and 84,391.29

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Solution

The fourth proportional to 321,048.99, 481,573.49 and 84,391.29 is: 126,586.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,048.99 : 481,573.49 = 84,391.29 : x
  2. Step 2: Convert to fraction form
    321,048.99/481,573.49 = 84,391.29/x
  3. Step 3: Cross multiply
    321,048.99x = 481,573.49 × 84,391.29
  4. Step 4: Simplify right side
    321,048.99x = 40,640,607,628.95
  5. Step 5: Solve for x
    x = 40,640,607,628.95/321,048.99
  6. Step 6: Final answer
    x = 126,586.94

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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.