Home / 396,835.42-547,637.01-215,550.89

Finding the Fourth Proportional to 396,835.42, 547,637.01 and 215,550.89

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Solution

The fourth proportional to 396,835.42, 547,637.01 and 215,550.89 is: 297,462.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,835.42 : 547,637.01 = 215,550.89 : x
  2. Step 2: Convert to fraction form
    396,835.42/547,637.01 = 215,550.89/x
  3. Step 3: Cross multiply
    396,835.42x = 547,637.01 × 215,550.89
  4. Step 4: Simplify right side
    396,835.42x = 118,043,644,902.44
  5. Step 5: Solve for x
    x = 118,043,644,902.44/396,835.42
  6. Step 6: Final answer
    x = 297,462.47

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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.