Finding the Fourth Proportional to 1,691,456.54, 2,331,951.84 and 1,343,750.64
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Solution
The fourth proportional to 1,691,456.54, 2,331,951.84 and 1,343,750.64 is: 1,852,581.91
Step by Step Solution
- Step 1: Write the proportion equation
1,691,456.54 : 2,331,951.84 = 1,343,750.64 : x - Step 2: Convert to fraction form
1,691,456.54/2,331,951.84 = 1,343,750.64/x - Step 3: Cross multiply
1,691,456.54x = 2,331,951.84 × 1,343,750.64 - Step 4: Simplify right side
1,691,456.54x = 3,133,561,777,449.18 - Step 5: Solve for x
x = 3,133,561,777,449.18/1,691,456.54 - Step 6: Final answer
x = 1,852,581.91
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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.