Finding the Fourth Proportional to 1,277,458.61, 1,915,860.94 and 378,690.17
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Solution
The fourth proportional to 1,277,458.61, 1,915,860.94 and 378,690.17 is: 567,938.32
Step by Step Solution
- Step 1: Write the proportion equation
1,277,458.61 : 1,915,860.94 = 378,690.17 : x - Step 2: Convert to fraction form
1,277,458.61/1,915,860.94 = 378,690.17/x - Step 3: Cross multiply
1,277,458.61x = 1,915,860.94 × 378,690.17 - Step 4: Simplify right side
1,277,458.61x = 725,517,694,538.93 - Step 5: Solve for x
x = 725,517,694,538.93/1,277,458.61 - Step 6: Final answer
x = 567,938.32
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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.