Home / 816,266.80-1,224,983.40-343,291.60

Finding the Fourth Proportional to 816,266.80, 1,224,983.40 and 343,291.60

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Solution

The fourth proportional to 816,266.80, 1,224,983.40 and 343,291.60 is: 515,182.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,266.80 : 1,224,983.40 = 343,291.60 : x
  2. Step 2: Convert to fraction form
    816,266.80/1,224,983.40 = 343,291.60/x
  3. Step 3: Cross multiply
    816,266.80x = 1,224,983.40 × 343,291.60
  4. Step 4: Simplify right side
    816,266.80x = 420,526,511,359.44
  5. Step 5: Solve for x
    x = 420,526,511,359.44/816,266.80
  6. Step 6: Final answer
    x = 515,182.67

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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.