Home / 859,982.80-1,289,974.20-220,285.30

Finding the Fourth Proportional to 859,982.80, 1,289,974.20 and 220,285.30

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Solution

The fourth proportional to 859,982.80, 1,289,974.20 and 220,285.30 is: 330,427.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,982.80 : 1,289,974.20 = 220,285.30 : x
  2. Step 2: Convert to fraction form
    859,982.80/1,289,974.20 = 220,285.30/x
  3. Step 3: Cross multiply
    859,982.80x = 1,289,974.20 × 220,285.30
  4. Step 4: Simplify right side
    859,982.80x = 284,162,353,639.26
  5. Step 5: Solve for x
    x = 284,162,353,639.26/859,982.80
  6. Step 6: Final answer
    x = 330,427.95

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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.