Home / 379,436.24-523,625.64-209,673.20

Finding the Fourth Proportional to 379,436.24, 523,625.64 and 209,673.20

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Solution

The fourth proportional to 379,436.24, 523,625.64 and 209,673.20 is: 289,351.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,436.24 : 523,625.64 = 209,673.20 : x
  2. Step 2: Convert to fraction form
    379,436.24/523,625.64 = 209,673.20/x
  3. Step 3: Cross multiply
    379,436.24x = 523,625.64 × 209,673.20
  4. Step 4: Simplify right side
    379,436.24x = 109,790,263,540.85
  5. Step 5: Solve for x
    x = 109,790,263,540.85/379,436.24
  6. Step 6: Final answer
    x = 289,351.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.