Finding the Fourth Proportional to 711,785.84, 982,264.42 and 389,495.97
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Solution
The fourth proportional to 711,785.84, 982,264.42 and 389,495.97 is: 537,504.42
Step by Step Solution
- Step 1: Write the proportion equation
711,785.84 : 982,264.42 = 389,495.97 : x - Step 2: Convert to fraction form
711,785.84/982,264.42 = 389,495.97/x - Step 3: Cross multiply
711,785.84x = 982,264.42 × 389,495.97 - Step 4: Simplify right side
711,785.84x = 382,588,034,546.31 - Step 5: Solve for x
x = 382,588,034,546.31/711,785.84 - Step 6: Final answer
x = 537,504.42
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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.