Home / 396,884.12-548,174.94-289,281.56

Finding the Fourth Proportional to 396,884.12, 548,174.94 and 289,281.56

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Solution

The fourth proportional to 396,884.12, 548,174.94 and 289,281.56 is: 399,554.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,884.12 : 548,174.94 = 289,281.56 : x
  2. Step 2: Convert to fraction form
    396,884.12/548,174.94 = 289,281.56/x
  3. Step 3: Cross multiply
    396,884.12x = 548,174.94 × 289,281.56
  4. Step 4: Simplify right side
    396,884.12x = 158,576,901,796.11
  5. Step 5: Solve for x
    x = 158,576,901,796.11/396,884.12
  6. Step 6: Final answer
    x = 399,554.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.