Finding the Fourth Proportional to 1,259,182.12, 1,737,620.63 and 686,209.99
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Solution
The fourth proportional to 1,259,182.12, 1,737,620.63 and 686,209.99 is: 946,942.15
Step by Step Solution
- Step 1: Write the proportion equation
1,259,182.12 : 1,737,620.63 = 686,209.99 : x - Step 2: Convert to fraction form
1,259,182.12/1,737,620.63 = 686,209.99/x - Step 3: Cross multiply
1,259,182.12x = 1,737,620.63 × 686,209.99 - Step 4: Simplify right side
1,259,182.12x = 1,192,372,627,360.99 - Step 5: Solve for x
x = 1,192,372,627,360.99/1,259,182.12 - Step 6: Final answer
x = 946,942.15
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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.