Finding the Fourth Proportional to 712,218.79, 982,859.31 and 406,294.63
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Solution
The fourth proportional to 712,218.79, 982,859.31 and 406,294.63 is: 560,685.09
Step by Step Solution
- Step 1: Write the proportion equation
712,218.79 : 982,859.31 = 406,294.63 : x - Step 2: Convert to fraction form
712,218.79/982,859.31 = 406,294.63/x - Step 3: Cross multiply
712,218.79x = 982,859.31 × 406,294.63 - Step 4: Simplify right side
712,218.79x = 399,330,457,241.36 - Step 5: Solve for x
x = 399,330,457,241.36/712,218.79 - Step 6: Final answer
x = 560,685.09
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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.