Home / 856,749.20-1,283,568.60-698,118.80

Finding the Fourth Proportional to 856,749.20, 1,283,568.60 and 698,118.80

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Solution

The fourth proportional to 856,749.20, 1,283,568.60 and 698,118.80 is: 1,045,910.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,749.20 : 1,283,568.60 = 698,118.80 : x
  2. Step 2: Convert to fraction form
    856,749.20/1,283,568.60 = 698,118.80/x
  3. Step 3: Cross multiply
    856,749.20x = 1,283,568.60 × 698,118.80
  4. Step 4: Simplify right side
    856,749.20x = 896,083,370,749.68
  5. Step 5: Solve for x
    x = 896,083,370,749.68/856,749.20
  6. Step 6: Final answer
    x = 1,045,910.95

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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.