Finding the Fourth Proportional to 711,805.96, 982,292.12 and 389,516.09
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Solution
The fourth proportional to 711,805.96, 982,292.12 and 389,516.09 is: 537,532.15
Step by Step Solution
- Step 1: Write the proportion equation
711,805.96 : 982,292.12 = 389,516.09 : x - Step 2: Convert to fraction form
711,805.96/982,292.12 = 389,516.09/x - Step 3: Cross multiply
711,805.96x = 982,292.12 × 389,516.09 - Step 4: Simplify right side
711,805.96x = 382,618,585,820.21 - Step 5: Solve for x
x = 382,618,585,820.21/711,805.96 - Step 6: Final answer
x = 537,532.15
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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.