Finding the Fourth Proportional to 612,485.62, 918,914.93 and 313,176.44
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Solution
The fourth proportional to 612,485.62, 918,914.93 and 313,176.44 is: 469,860.02
Step by Step Solution
- Step 1: Write the proportion equation
612,485.62 : 918,914.93 = 313,176.44 : x - Step 2: Convert to fraction form
612,485.62/918,914.93 = 313,176.44/x - Step 3: Cross multiply
612,485.62x = 918,914.93 × 313,176.44 - Step 4: Simplify right side
612,485.62x = 287,782,504,874.37 - Step 5: Solve for x
x = 287,782,504,874.37/612,485.62 - Step 6: Final answer
x = 469,860.02
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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.