Finding the Fourth Proportional to 1,259,079.27, 1,737,478.80 and 686,107.14
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Solution
The fourth proportional to 1,259,079.27, 1,737,478.80 and 686,107.14 is: 946,800.28
Step by Step Solution
- Step 1: Write the proportion equation
1,259,079.27 : 1,737,478.80 = 686,107.14 : x - Step 2: Convert to fraction form
1,259,079.27/1,737,478.80 = 686,107.14/x - Step 3: Cross multiply
1,259,079.27x = 1,737,478.80 × 686,107.14 - Step 4: Simplify right side
1,259,079.27x = 1,192,096,610,278.63 - Step 5: Solve for x
x = 1,192,096,610,278.63/1,259,079.27 - Step 6: Final answer
x = 946,800.28
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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.