Finding the Fourth Proportional to 784,236.86, 1,082,243.79 and 440,071.97
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Solution
The fourth proportional to 784,236.86, 1,082,243.79 and 440,071.97 is: 607,297.60
Step by Step Solution
- Step 1: Write the proportion equation
784,236.86 : 1,082,243.79 = 440,071.97 : x - Step 2: Convert to fraction form
784,236.86/1,082,243.79 = 440,071.97/x - Step 3: Cross multiply
784,236.86x = 1,082,243.79 × 440,071.97 - Step 4: Simplify right side
784,236.86x = 476,265,159,391.18 - Step 5: Solve for x
x = 476,265,159,391.18/784,236.86 - Step 6: Final answer
x = 607,297.60
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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.