Finding the Third Proportional to 312,972.19 and 491,487.75
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Solution
The third proportional to 312,972.19 and 491,487.75 is: 771,826.44
Step by Step Solution
- Step 1: Write the proportion equation
312,972.19 : 491,487.75 = 491,487.75 : x - Step 2: Convert to fraction form
312,972.19/491,487.75 = 491,487.75/x - Step 3: Cross multiply
312,972.19x = 491,487.75 × 491,487.75 - Step 4: Simplify right side
312,972.19x = 241,560,208,400.06 - Step 5: Solve for x
x = 241,560,208,400.06/312,972.19 - Step 6: Final answer
x = 771,826.44
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Why These Related Problems?
These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.