Finding the Fourth Proportional to 1,392,818.66, 1,922,488.34 and 820,190.99
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Solution
The fourth proportional to 1,392,818.66, 1,922,488.34 and 820,190.99 is: 1,132,098.27
Step by Step Solution
- Step 1: Write the proportion equation
1,392,818.66 : 1,922,488.34 = 820,190.99 : x - Step 2: Convert to fraction form
1,392,818.66/1,922,488.34 = 820,190.99/x - Step 3: Cross multiply
1,392,818.66x = 1,922,488.34 × 820,190.99 - Step 4: Simplify right side
1,392,818.66x = 1,576,807,601,134.66 - Step 5: Solve for x
x = 1,576,807,601,134.66/1,392,818.66 - Step 6: Final answer
x = 1,132,098.27
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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.