Finding the Fourth Proportional to 664,502.10, 996,898.95 and 215,243.70
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Solution
The fourth proportional to 664,502.10, 996,898.95 and 215,243.70 is: 322,912.78
Step by Step Solution
- Step 1: Write the proportion equation
664,502.10 : 996,898.95 = 215,243.70 : x - Step 2: Convert to fraction form
664,502.10/996,898.95 = 215,243.70/x - Step 3: Cross multiply
664,502.10x = 996,898.95 × 215,243.70 - Step 4: Simplify right side
664,502.10x = 214,576,218,524.12 - Step 5: Solve for x
x = 214,576,218,524.12/664,502.10 - Step 6: Final answer
x = 322,912.78
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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.