Finding the Fourth Proportional to 1,276,717.07, 1,915,355.94 and 378,229.16
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Solution
The fourth proportional to 1,276,717.07, 1,915,355.94 and 378,229.16 is: 567,426.79
Step by Step Solution
- Step 1: Write the proportion equation
1,276,717.07 : 1,915,355.94 = 378,229.16 : x - Step 2: Convert to fraction form
1,276,717.07/1,915,355.94 = 378,229.16/x - Step 3: Cross multiply
1,276,717.07x = 1,915,355.94 × 378,229.16 - Step 4: Simplify right side
1,276,717.07x = 724,443,468,287.21 - Step 5: Solve for x
x = 724,443,468,287.21/1,276,717.07 - Step 6: Final answer
x = 567,426.79
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.