Finding the Fourth Proportional to 1,293,122.94, 1,784,565.03 and 720,163.12
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Solution
The fourth proportional to 1,293,122.94, 1,784,565.03 and 720,163.12 is: 993,855.93
Step by Step Solution
- Step 1: Write the proportion equation
1,293,122.94 : 1,784,565.03 = 720,163.12 : x - Step 2: Convert to fraction form
1,293,122.94/1,784,565.03 = 720,163.12/x - Step 3: Cross multiply
1,293,122.94x = 1,784,565.03 × 720,163.12 - Step 4: Simplify right side
1,293,122.94x = 1,285,177,907,324.05 - Step 5: Solve for x
x = 1,285,177,907,324.05/1,293,122.94 - Step 6: Final answer
x = 993,855.93
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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.