Finding the Fourth Proportional to 1,297,227.76, 1,790,163.79 and 716,490.70
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Solution
The fourth proportional to 1,297,227.76, 1,790,163.79 and 716,490.70 is: 988,751.35
Step by Step Solution
- Step 1: Write the proportion equation
1,297,227.76 : 1,790,163.79 = 716,490.70 : x - Step 2: Convert to fraction form
1,297,227.76/1,790,163.79 = 716,490.70/x - Step 3: Cross multiply
1,297,227.76x = 1,790,163.79 × 716,490.70 - Step 4: Simplify right side
1,297,227.76x = 1,282,635,698,060.93 - Step 5: Solve for x
x = 1,282,635,698,060.93/1,297,227.76 - Step 6: Final answer
x = 988,751.35
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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.