Home / 396,910.47-547,740.24-215,623.77

Finding the Fourth Proportional to 396,910.47, 547,740.24 and 215,623.77

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Solution

The fourth proportional to 396,910.47, 547,740.24 and 215,623.77 is: 297,562.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,910.47 : 547,740.24 = 215,623.77 : x
  2. Step 2: Convert to fraction form
    396,910.47/547,740.24 = 215,623.77/x
  3. Step 3: Cross multiply
    396,910.47x = 547,740.24 × 215,623.77
  4. Step 4: Simplify right side
    396,910.47x = 118,105,815,529.51
  5. Step 5: Solve for x
    x = 118,105,815,529.51/396,910.47
  6. Step 6: Final answer
    x = 297,562.86

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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.