Finding the Fourth Proportional to 1,259,520.82, 1,738,138.78 and 686,560.99
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Solution
The fourth proportional to 1,259,520.82, 1,738,138.78 and 686,560.99 is: 947,454.19
Step by Step Solution
- Step 1: Write the proportion equation
1,259,520.82 : 1,738,138.78 = 686,560.99 : x - Step 2: Convert to fraction form
1,259,520.82/1,738,138.78 = 686,560.99/x - Step 3: Cross multiply
1,259,520.82x = 1,738,138.78 × 686,560.99 - Step 4: Simplify right side
1,259,520.82x = 1,193,338,281,554.19 - Step 5: Solve for x
x = 1,193,338,281,554.19/1,259,520.82 - Step 6: Final answer
x = 947,454.19
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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.