Finding the Fourth Proportional to 664,537.80, 996,806.70 and 486,078.60
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Solution
The fourth proportional to 664,537.80, 996,806.70 and 486,078.60 is: 729,117.90
Step by Step Solution
- Step 1: Write the proportion equation
664,537.80 : 996,806.70 = 486,078.60 : x - Step 2: Convert to fraction form
664,537.80/996,806.70 = 486,078.60/x - Step 3: Cross multiply
664,537.80x = 996,806.70 × 486,078.60 - Step 4: Simplify right side
664,537.80x = 484,526,405,206.62 - Step 5: Solve for x
x = 484,526,405,206.62/664,537.80 - Step 6: Final answer
x = 729,117.90
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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.