Finding the Fourth Proportional to 527,207.20, 789,735.60 and 326,912.80
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Solution
The fourth proportional to 527,207.20, 789,735.60 and 326,912.80 is: 489,702.49
Step by Step Solution
- Step 1: Write the proportion equation
527,207.20 : 789,735.60 = 326,912.80 : x - Step 2: Convert to fraction form
527,207.20/789,735.60 = 326,912.80/x - Step 3: Cross multiply
527,207.20x = 789,735.60 × 326,912.80 - Step 4: Simplify right side
527,207.20x = 258,174,676,255.68 - Step 5: Solve for x
x = 258,174,676,255.68/527,207.20 - Step 6: Final answer
x = 489,702.49
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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.