Home / 286,249.37-428,709.65-276,285.15

Finding the Fourth Proportional to 286,249.37, 428,709.65 and 276,285.15

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Solution

The fourth proportional to 286,249.37, 428,709.65 and 276,285.15 is: 413,786.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,249.37 : 428,709.65 = 276,285.15 : x
  2. Step 2: Convert to fraction form
    286,249.37/428,709.65 = 276,285.15/x
  3. Step 3: Cross multiply
    286,249.37x = 428,709.65 × 276,285.15
  4. Step 4: Simplify right side
    286,249.37x = 118,446,108,575.27
  5. Step 5: Solve for x
    x = 118,446,108,575.27/286,249.37
  6. Step 6: Final answer
    x = 413,786.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.