Finding the Fourth Proportional to 1,691,411.91, 2,331,890.45 and 1,343,705.99
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Solution
The fourth proportional to 1,691,411.91, 2,331,890.45 and 1,343,705.99 is: 1,852,520.46
Step by Step Solution
- Step 1: Write the proportion equation
1,691,411.91 : 2,331,890.45 = 1,343,705.99 : x - Step 2: Convert to fraction form
1,691,411.91/2,331,890.45 = 1,343,705.99/x - Step 3: Cross multiply
1,691,411.91x = 2,331,890.45 × 1,343,705.99 - Step 4: Simplify right side
1,691,411.91x = 3,133,375,164,799.99 - Step 5: Solve for x
x = 3,133,375,164,799.99/1,691,411.91 - Step 6: Final answer
x = 1,852,520.46
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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.