Finding the Fourth Proportional to 694,135.08, 1,040,014.35 and 378,813.42
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Solution
The fourth proportional to 694,135.08, 1,040,014.35 and 378,813.42 is: 567,571.65
Step by Step Solution
- Step 1: Write the proportion equation
694,135.08 : 1,040,014.35 = 378,813.42 : x - Step 2: Convert to fraction form
694,135.08/1,040,014.35 = 378,813.42/x - Step 3: Cross multiply
694,135.08x = 1,040,014.35 × 378,813.42 - Step 4: Simplify right side
694,135.08x = 393,971,392,772.58 - Step 5: Solve for x
x = 393,971,392,772.58/694,135.08 - Step 6: Final answer
x = 567,571.65
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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.