Finding the Fourth Proportional to 1,299,647.49, 1,793,393.14 and 718,858.11
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Solution
The fourth proportional to 1,299,647.49, 1,793,393.14 and 718,858.11 is: 991,957.60
Step by Step Solution
- Step 1: Write the proportion equation
1,299,647.49 : 1,793,393.14 = 718,858.11 : x - Step 2: Convert to fraction form
1,299,647.49/1,793,393.14 = 718,858.11/x - Step 3: Cross multiply
1,299,647.49x = 1,793,393.14 × 718,858.11 - Step 4: Simplify right side
1,299,647.49x = 1,289,195,203,107.37 - Step 5: Solve for x
x = 1,289,195,203,107.37/1,299,647.49 - Step 6: Final answer
x = 991,957.60
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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.