Finding the Fourth Proportional to 664,474.40, 996,711.60 and 660,537.80
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Solution
The fourth proportional to 664,474.40, 996,711.60 and 660,537.80 is: 990,806.70
Step by Step Solution
- Step 1: Write the proportion equation
664,474.40 : 996,711.60 = 660,537.80 : x - Step 2: Convert to fraction form
664,474.40/996,711.60 = 660,537.80/x - Step 3: Cross multiply
664,474.40x = 996,711.60 × 660,537.80 - Step 4: Simplify right side
664,474.40x = 658,365,687,498.48 - Step 5: Solve for x
x = 658,365,687,498.48/664,474.40 - Step 6: Final answer
x = 990,806.70
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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.