Finding the Fourth Proportional to 789,157.68, 1,089,035.46 and 449,628.36
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Solution
The fourth proportional to 789,157.68, 1,089,035.46 and 449,628.36 is: 620,485.92
Step by Step Solution
- Step 1: Write the proportion equation
789,157.68 : 1,089,035.46 = 449,628.36 : x - Step 2: Convert to fraction form
789,157.68/1,089,035.46 = 449,628.36/x - Step 3: Cross multiply
789,157.68x = 1,089,035.46 × 449,628.36 - Step 4: Simplify right side
789,157.68x = 489,661,227,861.65 - Step 5: Solve for x
x = 489,661,227,861.65/789,157.68 - Step 6: Final answer
x = 620,485.92
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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.