Finding the Fourth Proportional to 1,643,006.68, 2,278,948.92 and 1,599,310.42
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Solution
The fourth proportional to 1,643,006.68, 2,278,948.92 and 1,599,310.42 is: 2,218,339.58
Step by Step Solution
- Step 1: Write the proportion equation
1,643,006.68 : 2,278,948.92 = 1,599,310.42 : x - Step 2: Convert to fraction form
1,643,006.68/2,278,948.92 = 1,599,310.42/x - Step 3: Cross multiply
1,643,006.68x = 2,278,948.92 × 1,599,310.42 - Step 4: Simplify right side
1,643,006.68x = 3,644,746,746,407.19 - Step 5: Solve for x
x = 3,644,746,746,407.19/1,643,006.68 - Step 6: Final answer
x = 2,218,339.58
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Why These Related Problems?
These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.