Finding the Fourth Proportional to 1,172,121.13, 1,755,906.67 and 863,813.13
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Solution
The fourth proportional to 1,172,121.13, 1,755,906.67 and 863,813.13 is: 1,294,043.08
Step by Step Solution
- Step 1: Write the proportion equation
1,172,121.13 : 1,755,906.67 = 863,813.13 : x - Step 2: Convert to fraction form
1,172,121.13/1,755,906.67 = 863,813.13/x - Step 3: Cross multiply
1,172,121.13x = 1,755,906.67 × 863,813.13 - Step 4: Simplify right side
1,172,121.13x = 1,516,775,236,600.58 - Step 5: Solve for x
x = 1,516,775,236,600.58/1,172,121.13 - Step 6: Final answer
x = 1,294,043.08
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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.