Finding the Fourth Proportional to 641,471.53, 962,421.09 and 215,049.55
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Solution
The fourth proportional to 641,471.53, 962,421.09 and 215,049.55 is: 322,645.99
Step by Step Solution
- Step 1: Write the proportion equation
641,471.53 : 962,421.09 = 215,049.55 : x - Step 2: Convert to fraction form
641,471.53/962,421.09 = 215,049.55/x - Step 3: Cross multiply
641,471.53x = 962,421.09 × 215,049.55 - Step 4: Simplify right side
641,471.53x = 206,968,216,427.66 - Step 5: Solve for x
x = 206,968,216,427.66/641,471.53 - Step 6: Final answer
x = 322,645.99
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1.5x scale
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.