Finding the Fourth Proportional to 691,707.80, 1,036,172.16 and 344,445.08
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Solution
The fourth proportional to 691,707.80, 1,036,172.16 and 344,445.08 is: 515,975.68
Step by Step Solution
- Step 1: Write the proportion equation
691,707.80 : 1,036,172.16 = 344,445.08 : x - Step 2: Convert to fraction form
691,707.80/1,036,172.16 = 344,445.08/x - Step 3: Cross multiply
691,707.80x = 1,036,172.16 × 344,445.08 - Step 4: Simplify right side
691,707.80x = 356,904,402,544.97 - Step 5: Solve for x
x = 356,904,402,544.97/691,707.80 - Step 6: Final answer
x = 515,975.68
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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.