Finding the Fourth Proportional to 2,087,687.64, 2,880,961.92 and 1,216,468.44
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Solution
The fourth proportional to 2,087,687.64, 2,880,961.92 and 1,216,468.44 is: 1,678,699.05
Step by Step Solution
- Step 1: Write the proportion equation
2,087,687.64 : 2,880,961.92 = 1,216,468.44 : x - Step 2: Convert to fraction form
2,087,687.64/2,880,961.92 = 1,216,468.44/x - Step 3: Cross multiply
2,087,687.64x = 2,880,961.92 × 1,216,468.44 - Step 4: Simplify right side
2,087,687.64x = 3,504,599,252,521.81 - Step 5: Solve for x
x = 3,504,599,252,521.81/2,087,687.64 - Step 6: Final answer
x = 1,678,699.05
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.