Finding the Fourth Proportional to 1,259,182.18, 1,737,620.70 and 686,210.05
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Solution
The fourth proportional to 1,259,182.18, 1,737,620.70 and 686,210.05 is: 946,942.23
Step by Step Solution
- Step 1: Write the proportion equation
1,259,182.18 : 1,737,620.70 = 686,210.05 : x - Step 2: Convert to fraction form
1,259,182.18/1,737,620.70 = 686,210.05/x - Step 3: Cross multiply
1,259,182.18x = 1,737,620.70 × 686,210.05 - Step 4: Simplify right side
1,259,182.18x = 1,192,372,787,428.04 - Step 5: Solve for x
x = 1,192,372,787,428.04/1,259,182.18 - Step 6: Final answer
x = 946,942.23
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1.5x scale
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.