Finding the Fourth Proportional to 711,812.96, 982,301.97 and 389,523.08
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Solution
The fourth proportional to 711,812.96, 982,301.97 and 389,523.08 is: 537,541.89
Step by Step Solution
- Step 1: Write the proportion equation
711,812.96 : 982,301.97 = 389,523.08 : x - Step 2: Convert to fraction form
711,812.96/982,301.97 = 389,523.08/x - Step 3: Cross multiply
711,812.96x = 982,301.97 × 389,523.08 - Step 4: Simplify right side
711,812.96x = 382,629,283,932.96 - Step 5: Solve for x
x = 382,629,283,932.96/711,812.96 - Step 6: Final answer
x = 537,541.89
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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.