Finding the Fourth Proportional to 860,517.09, 1,290,726.36 and 328,091.94
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Solution
The fourth proportional to 860,517.09, 1,290,726.36 and 328,091.94 is: 492,119.12
Step by Step Solution
- Step 1: Write the proportion equation
860,517.09 : 1,290,726.36 = 328,091.94 : x - Step 2: Convert to fraction form
860,517.09/1,290,726.36 = 328,091.94/x - Step 3: Cross multiply
860,517.09x = 1,290,726.36 × 328,091.94 - Step 4: Simplify right side
860,517.09x = 423,476,915,461.54 - Step 5: Solve for x
x = 423,476,915,461.54/860,517.09 - Step 6: Final answer
x = 492,119.12
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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.