Home / 396,846.09-547,654.23-215,558.37

Finding the Fourth Proportional to 396,846.09, 547,654.23 and 215,558.37

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Solution

The fourth proportional to 396,846.09, 547,654.23 and 215,558.37 is: 297,474.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,846.09 : 547,654.23 = 215,558.37 : x
  2. Step 2: Convert to fraction form
    396,846.09/547,654.23 = 215,558.37/x
  3. Step 3: Cross multiply
    396,846.09x = 547,654.23 × 215,558.37
  4. Step 4: Simplify right side
    396,846.09x = 118,051,453,142.41
  5. Step 5: Solve for x
    x = 118,051,453,142.41/396,846.09
  6. Step 6: Final answer
    x = 297,474.15

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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.