Finding the Fourth Proportional to 1,689,275.38, 2,331,197.97 and 914,905.81
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Solution
The fourth proportional to 1,689,275.38, 2,331,197.97 and 914,905.81 is: 1,262,568.91
Step by Step Solution
- Step 1: Write the proportion equation
1,689,275.38 : 2,331,197.97 = 914,905.81 : x - Step 2: Convert to fraction form
1,689,275.38/2,331,197.97 = 914,905.81/x - Step 3: Cross multiply
1,689,275.38x = 2,331,197.97 × 914,905.81 - Step 4: Simplify right side
1,689,275.38x = 2,132,826,567,013.21 - Step 5: Solve for x
x = 2,132,826,567,013.21/1,689,275.38 - Step 6: Final answer
x = 1,262,568.91
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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.