Home / 412,005.12-568,273.11-378,122.82

Finding the Fourth Proportional to 412,005.12, 568,273.11 and 378,122.82

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Solution

The fourth proportional to 412,005.12, 568,273.11 and 378,122.82 is: 521,539.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,005.12 : 568,273.11 = 378,122.82 : x
  2. Step 2: Convert to fraction form
    412,005.12/568,273.11 = 378,122.82/x
  3. Step 3: Cross multiply
    412,005.12x = 568,273.11 × 378,122.82
  4. Step 4: Simplify right side
    412,005.12x = 214,877,030,883.37
  5. Step 5: Solve for x
    x = 214,877,030,883.37/412,005.12
  6. Step 6: Final answer
    x = 521,539.71

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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.