Finding the Fourth Proportional to 757,010.72, 1,135,516.12 and 307,975.76
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Solution
The fourth proportional to 757,010.72, 1,135,516.12 and 307,975.76 is: 461,963.66
Step by Step Solution
- Step 1: Write the proportion equation
757,010.72 : 1,135,516.12 = 307,975.76 : x - Step 2: Convert to fraction form
757,010.72/1,135,516.12 = 307,975.76/x - Step 3: Cross multiply
757,010.72x = 1,135,516.12 × 307,975.76 - Step 4: Simplify right side
757,010.72x = 349,711,440,049.25 - Step 5: Solve for x
x = 349,711,440,049.25/757,010.72 - Step 6: Final answer
x = 461,963.66
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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.