Finding the Fourth Proportional to 664,708.63, 996,849.70 and 215,321.15
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Solution
The fourth proportional to 664,708.63, 996,849.70 and 215,321.15 is: 322,912.65
Step by Step Solution
- Step 1: Write the proportion equation
664,708.63 : 996,849.70 = 215,321.15 : x - Step 2: Convert to fraction form
664,708.63/996,849.70 = 215,321.15/x - Step 3: Cross multiply
664,708.63x = 996,849.70 × 215,321.15 - Step 4: Simplify right side
664,708.63x = 214,642,823,781.16 - Step 5: Solve for x
x = 214,642,823,781.16/664,708.63 - Step 6: Final answer
x = 322,912.65
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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.