Finding the Fourth Proportional to 560,502.09, 773,147.66 and 399,409.19
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Solution
The fourth proportional to 560,502.09, 773,147.66 and 399,409.19 is: 550,938.67
Step by Step Solution
- Step 1: Write the proportion equation
560,502.09 : 773,147.66 = 399,409.19 : x - Step 2: Convert to fraction form
560,502.09/773,147.66 = 399,409.19/x - Step 3: Cross multiply
560,502.09x = 773,147.66 × 399,409.19 - Step 4: Simplify right side
560,502.09x = 308,802,274,768.21 - Step 5: Solve for x
x = 308,802,274,768.21/560,502.09 - Step 6: Final answer
x = 550,938.67
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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.