Finding the Fourth Proportional to 1,299,646.49, 1,793,391.77 and 718,857.11
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Solution
The fourth proportional to 1,299,646.49, 1,793,391.77 and 718,857.11 is: 991,956.22
Step by Step Solution
- Step 1: Write the proportion equation
1,299,646.49 : 1,793,391.77 = 718,857.11 : x - Step 2: Convert to fraction form
1,299,646.49/1,793,391.77 = 718,857.11/x - Step 3: Cross multiply
1,299,646.49x = 1,793,391.77 × 718,857.11 - Step 4: Simplify right side
1,299,646.49x = 1,289,192,412,318.74 - Step 5: Solve for x
x = 1,289,192,412,318.74/1,299,646.49 - Step 6: Final answer
x = 991,956.22
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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.