Home / 859,391.38-1,289,081.95-219,694.10

Finding the Fourth Proportional to 859,391.38, 1,289,081.95 and 219,694.10

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Solution

The fourth proportional to 859,391.38, 1,289,081.95 and 219,694.10 is: 329,539.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,391.38 : 1,289,081.95 = 219,694.10 : x
  2. Step 2: Convert to fraction form
    859,391.38/1,289,081.95 = 219,694.10/x
  3. Step 3: Cross multiply
    859,391.38x = 1,289,081.95 × 219,694.10
  4. Step 4: Simplify right side
    859,391.38x = 283,203,702,901.80
  5. Step 5: Solve for x
    x = 283,203,702,901.80/859,391.38
  6. Step 6: Final answer
    x = 329,539.85

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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.