Finding the Fourth Proportional to 1,276,723.92, 1,915,366.24 and 378,236.02
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Solution
The fourth proportional to 1,276,723.92, 1,915,366.24 and 378,236.02 is: 567,437.09
Step by Step Solution
- Step 1: Write the proportion equation
1,276,723.92 : 1,915,366.24 = 378,236.02 : x - Step 2: Convert to fraction form
1,276,723.92/1,915,366.24 = 378,236.02/x - Step 3: Cross multiply
1,276,723.92x = 1,915,366.24 × 378,236.02 - Step 4: Simplify right side
1,276,723.92x = 724,460,503,459.97 - Step 5: Solve for x
x = 724,460,503,459.97/1,276,723.92 - Step 6: Final answer
x = 567,437.09
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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.