Finding the Fourth Proportional to 738,664.72, 1,019,357.97 and 399,132.97
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Solution
The fourth proportional to 738,664.72, 1,019,357.97 and 399,132.97 is: 550,803.85
Step by Step Solution
- Step 1: Write the proportion equation
738,664.72 : 1,019,357.97 = 399,132.97 : x - Step 2: Convert to fraction form
738,664.72/1,019,357.97 = 399,132.97/x - Step 3: Cross multiply
738,664.72x = 1,019,357.97 × 399,132.97 - Step 4: Simplify right side
738,664.72x = 406,859,370,014.13 - Step 5: Solve for x
x = 406,859,370,014.13/738,664.72 - Step 6: Final answer
x = 550,803.85
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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.