Home / 396,274.46-547,070.94-305,431.34

Finding the Fourth Proportional to 396,274.46, 547,070.94 and 305,431.34

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Solution

The fourth proportional to 396,274.46, 547,070.94 and 305,431.34 is: 421,658.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,274.46 : 547,070.94 = 305,431.34 : x
  2. Step 2: Convert to fraction form
    396,274.46/547,070.94 = 305,431.34/x
  3. Step 3: Cross multiply
    396,274.46x = 547,070.94 × 305,431.34
  4. Step 4: Simplify right side
    396,274.46x = 167,092,610,279.26
  5. Step 5: Solve for x
    x = 167,092,610,279.26/396,274.46
  6. Step 6: Final answer
    x = 421,658.79

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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.