Home / 396,799.42-547,589.75-215,511.49

Finding the Fourth Proportional to 396,799.42, 547,589.75 and 215,511.49

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Solution

The fourth proportional to 396,799.42, 547,589.75 and 215,511.49 is: 297,409.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,799.42 : 547,589.75 = 215,511.49 : x
  2. Step 2: Convert to fraction form
    396,799.42/547,589.75 = 215,511.49/x
  3. Step 3: Cross multiply
    396,799.42x = 547,589.75 × 215,511.49
  4. Step 4: Simplify right side
    396,799.42x = 118,011,882,931.23
  5. Step 5: Solve for x
    x = 118,011,882,931.23/396,799.42
  6. Step 6: Final answer
    x = 297,409.41

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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.