Home / 842,826.65-1,263,976.46-281,729.93

Finding the Fourth Proportional to 842,826.65, 1,263,976.46 and 281,729.93

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Solution

The fourth proportional to 842,826.65, 1,263,976.46 and 281,729.93 is: 422,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,826.65 : 1,263,976.46 = 281,729.93 : x
  2. Step 2: Convert to fraction form
    842,826.65/1,263,976.46 = 281,729.93/x
  3. Step 3: Cross multiply
    842,826.65x = 1,263,976.46 × 281,729.93
  4. Step 4: Simplify right side
    842,826.65x = 356,100,001,348.74
  5. Step 5: Solve for x
    x = 356,100,001,348.74/842,826.65
  6. Step 6: Final answer
    x = 422,506.81

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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.