Finding the Fourth Proportional to 993,213.36, 1,370,539.60 and 557,530.96
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Solution
The fourth proportional to 993,213.36, 1,370,539.60 and 557,530.96 is: 769,339.49
Step by Step Solution
- Step 1: Write the proportion equation
993,213.36 : 1,370,539.60 = 557,530.96 : x - Step 2: Convert to fraction form
993,213.36/1,370,539.60 = 557,530.96/x - Step 3: Cross multiply
993,213.36x = 1,370,539.60 × 557,530.96 - Step 4: Simplify right side
993,213.36x = 764,118,258,906.02 - Step 5: Solve for x
x = 764,118,258,906.02/993,213.36 - Step 6: Final answer
x = 769,339.49
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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.