Home / 852,980.78-1,279,472.80-221,893.58

Finding the Fourth Proportional to 852,980.78, 1,279,472.80 and 221,893.58

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Solution

The fourth proportional to 852,980.78, 1,279,472.80 and 221,893.58 is: 332,840.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,980.78 : 1,279,472.80 = 221,893.58 : x
  2. Step 2: Convert to fraction form
    852,980.78/1,279,472.80 = 221,893.58/x
  3. Step 3: Cross multiply
    852,980.78x = 1,279,472.80 × 221,893.58
  4. Step 4: Simplify right side
    852,980.78x = 283,906,800,104.62
  5. Step 5: Solve for x
    x = 283,906,800,104.62/852,980.78
  6. Step 6: Final answer
    x = 332,840.79

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1.5x scale

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.