Finding the Fourth Proportional to 738,905.79, 1,019,747.75 and 412,321.49
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Solution
The fourth proportional to 738,905.79, 1,019,747.75 and 412,321.49 is: 569,035.88
Step by Step Solution
- Step 1: Write the proportion equation
738,905.79 : 1,019,747.75 = 412,321.49 : x - Step 2: Convert to fraction form
738,905.79/1,019,747.75 = 412,321.49/x - Step 3: Cross multiply
738,905.79x = 1,019,747.75 × 412,321.49 - Step 4: Simplify right side
738,905.79x = 420,463,904,543.80 - Step 5: Solve for x
x = 420,463,904,543.80/738,905.79 - Step 6: Final answer
x = 569,035.88
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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.