Finding the Fourth Proportional to 2,151,578.74, 2,969,243.99 and 1,184,743.63
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Solution
The fourth proportional to 2,151,578.74, 2,969,243.99 and 1,184,743.63 is: 1,634,982.18
Step by Step Solution
- Step 1: Write the proportion equation
2,151,578.74 : 2,969,243.99 = 1,184,743.63 : x - Step 2: Convert to fraction form
2,151,578.74/2,969,243.99 = 1,184,743.63/x - Step 3: Cross multiply
2,151,578.74x = 2,969,243.99 × 1,184,743.63 - Step 4: Simplify right side
2,151,578.74x = 3,517,792,901,966.82 - Step 5: Solve for x
x = 3,517,792,901,966.82/2,151,578.74 - Step 6: Final answer
x = 1,634,982.18
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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.