Home / 816,806.19-1,224,105.30-311,091.29

Finding the Fourth Proportional to 816,806.19, 1,224,105.30 and 311,091.29

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Solution

The fourth proportional to 816,806.19, 1,224,105.30 and 311,091.29 is: 466,216.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,806.19 : 1,224,105.30 = 311,091.29 : x
  2. Step 2: Convert to fraction form
    816,806.19/1,224,105.30 = 311,091.29/x
  3. Step 3: Cross multiply
    816,806.19x = 1,224,105.30 × 311,091.29
  4. Step 4: Simplify right side
    816,806.19x = 380,808,489,196.85
  5. Step 5: Solve for x
    x = 380,808,489,196.85/816,806.19
  6. Step 6: Final answer
    x = 466,216.46

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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.