Finding the Fourth Proportional to 989,445.96, 1,365,435.84 and 559,716.96
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Solution
The fourth proportional to 989,445.96, 1,365,435.84 and 559,716.96 is: 772,409.64
Step by Step Solution
- Step 1: Write the proportion equation
989,445.96 : 1,365,435.84 = 559,716.96 : x - Step 2: Convert to fraction form
989,445.96/1,365,435.84 = 559,716.96/x - Step 3: Cross multiply
989,445.96x = 1,365,435.84 × 559,716.96 - Step 4: Simplify right side
989,445.96x = 764,257,597,439.85 - Step 5: Solve for x
x = 764,257,597,439.85/989,445.96 - Step 6: Final answer
x = 772,409.64
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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.