Finding the Fourth Proportional to 1,296,292.99, 1,788,884.49 and 715,516.32
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Solution
The fourth proportional to 1,296,292.99, 1,788,884.49 and 715,516.32 is: 987,412.61
Step by Step Solution
- Step 1: Write the proportion equation
1,296,292.99 : 1,788,884.49 = 715,516.32 : x - Step 2: Convert to fraction form
1,296,292.99/1,788,884.49 = 715,516.32/x - Step 3: Cross multiply
1,296,292.99x = 1,788,884.49 × 715,516.32 - Step 4: Simplify right side
1,296,292.99x = 1,279,976,042,745.84 - Step 5: Solve for x
x = 1,279,976,042,745.84/1,296,292.99 - Step 6: Final answer
x = 987,412.61
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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.