Finding the Fourth Proportional to 963,197.45, 1,330,105.97 and 721,059.65
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Solution
The fourth proportional to 963,197.45, 1,330,105.97 and 721,059.65 is: 995,731.19
Step by Step Solution
- Step 1: Write the proportion equation
963,197.45 : 1,330,105.97 = 721,059.65 : x - Step 2: Convert to fraction form
963,197.45/1,330,105.97 = 721,059.65/x - Step 3: Cross multiply
963,197.45x = 1,330,105.97 × 721,059.65 - Step 4: Simplify right side
963,197.45x = 959,085,741,585.81 - Step 5: Solve for x
x = 959,085,741,585.81/963,197.45 - Step 6: Final answer
x = 995,731.19
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.