Finding the Fourth Proportional to 1,691,403.71, 2,331,879.11 and 1,343,697.81
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Solution
The fourth proportional to 1,691,403.71, 2,331,879.11 and 1,343,697.81 is: 1,852,509.15
Step by Step Solution
- Step 1: Write the proportion equation
1,691,403.71 : 2,331,879.11 = 1,343,697.81 : x - Step 2: Convert to fraction form
1,691,403.71/2,331,879.11 = 1,343,697.81/x - Step 3: Cross multiply
1,691,403.71x = 2,331,879.11 × 1,343,697.81 - Step 4: Simplify right side
1,691,403.71x = 3,133,340,846,573.26 - Step 5: Solve for x
x = 3,133,340,846,573.26/1,691,403.71 - Step 6: Final answer
x = 1,852,509.15
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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.