Home / 919,676.38-1,379,498.50-413,879.44

Finding the Fourth Proportional to 919,676.38, 1,379,498.50 and 413,879.44

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Solution

The fourth proportional to 919,676.38, 1,379,498.50 and 413,879.44 is: 620,811.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,676.38 : 1,379,498.50 = 413,879.44 : x
  2. Step 2: Convert to fraction form
    919,676.38/1,379,498.50 = 413,879.44/x
  3. Step 3: Cross multiply
    919,676.38x = 1,379,498.50 × 413,879.44
  4. Step 4: Simplify right side
    919,676.38x = 570,946,066,660.84
  5. Step 5: Solve for x
    x = 570,946,066,660.84/919,676.38
  6. Step 6: Final answer
    x = 620,811.93

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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.