Finding the Fourth Proportional to 992,861.36, 1,489,101.57 and 385,649
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Solution
The fourth proportional to 992,861.36, 1,489,101.57 and 385,649 is: 578,399.52
Step by Step Solution
- Step 1: Write the proportion equation
992,861.36 : 1,489,101.57 = 385,649 : x - Step 2: Convert to fraction form
992,861.36/1,489,101.57 = 385,649/x - Step 3: Cross multiply
992,861.36x = 1,489,101.57 × 385,649 - Step 4: Simplify right side
992,861.36x = 574,270,531,368.93 - Step 5: Solve for x
x = 574,270,531,368.93/992,861.36 - Step 6: Final answer
x = 578,399.52
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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.