Finding the Fourth Proportional to 1,276,696.41, 1,912,653.49 and 1,145,243.13
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Solution
The fourth proportional to 1,276,696.41, 1,912,653.49 and 1,145,243.13 is: 1,715,719.77
Step by Step Solution
- Step 1: Write the proportion equation
1,276,696.41 : 1,912,653.49 = 1,145,243.13 : x - Step 2: Convert to fraction form
1,276,696.41/1,912,653.49 = 1,145,243.13/x - Step 3: Cross multiply
1,276,696.41x = 1,912,653.49 × 1,145,243.13 - Step 4: Simplify right side
1,276,696.41x = 2,190,453,269,493.02 - Step 5: Solve for x
x = 2,190,453,269,493.02/1,276,696.41 - Step 6: Final answer
x = 1,715,719.77
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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.