Finding the Fourth Proportional to 2,148,843.24, 2,965,825.04 and 1,231,687.13
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Solution
The fourth proportional to 2,148,843.24, 2,965,825.04 and 1,231,687.13 is: 1,699,969.75
Step by Step Solution
- Step 1: Write the proportion equation
2,148,843.24 : 2,965,825.04 = 1,231,687.13 : x - Step 2: Convert to fraction form
2,148,843.24/2,965,825.04 = 1,231,687.13/x - Step 3: Cross multiply
2,148,843.24x = 2,965,825.04 × 1,231,687.13 - Step 4: Simplify right side
2,148,843.24x = 3,652,968,510,612.17 - Step 5: Solve for x
x = 3,652,968,510,612.17/2,148,843.24 - Step 6: Final answer
x = 1,699,969.75
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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.