Home / 859,606.20-1,289,409.30-219,908.70

Finding the Fourth Proportional to 859,606.20, 1,289,409.30 and 219,908.70

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Solution

The fourth proportional to 859,606.20, 1,289,409.30 and 219,908.70 is: 329,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,606.20 : 1,289,409.30 = 219,908.70 : x
  2. Step 2: Convert to fraction form
    859,606.20/1,289,409.30 = 219,908.70/x
  3. Step 3: Cross multiply
    859,606.20x = 1,289,409.30 × 219,908.70
  4. Step 4: Simplify right side
    859,606.20x = 283,552,322,930.91
  5. Step 5: Solve for x
    x = 283,552,322,930.91/859,606.20
  6. Step 6: Final answer
    x = 329,863.05

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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.