Finding the Fourth Proportional to 443,769.48, 613,096.74 and 421,921.08
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Solution
The fourth proportional to 443,769.48, 613,096.74 and 421,921.08 is: 582,911.74
Step by Step Solution
- Step 1: Write the proportion equation
443,769.48 : 613,096.74 = 421,921.08 : x - Step 2: Convert to fraction form
443,769.48/613,096.74 = 421,921.08/x - Step 3: Cross multiply
443,769.48x = 613,096.74 × 421,921.08 - Step 4: Simplify right side
443,769.48x = 258,678,438,685.28 - Step 5: Solve for x
x = 258,678,438,685.28/443,769.48 - Step 6: Final answer
x = 582,911.74
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1.5x scale
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.