Finding the Fourth Proportional to 874,367.80, 1,311,551.70 and 283,391.80
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Solution
The fourth proportional to 874,367.80, 1,311,551.70 and 283,391.80 is: 425,087.70
Step by Step Solution
- Step 1: Write the proportion equation
874,367.80 : 1,311,551.70 = 283,391.80 : x - Step 2: Convert to fraction form
874,367.80/1,311,551.70 = 283,391.80/x - Step 3: Cross multiply
874,367.80x = 1,311,551.70 × 283,391.80 - Step 4: Simplify right side
874,367.80x = 371,682,997,056.06 - Step 5: Solve for x
x = 371,682,997,056.06/874,367.80 - Step 6: Final answer
x = 425,087.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.