Finding the Fourth Proportional to 1,398,194.79, 2,087,084.84 and 1,199,790.15
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Solution
The fourth proportional to 1,398,194.79, 2,087,084.84 and 1,199,790.15 is: 1,790,926.31
Step by Step Solution
- Step 1: Write the proportion equation
1,398,194.79 : 2,087,084.84 = 1,199,790.15 : x - Step 2: Convert to fraction form
1,398,194.79/2,087,084.84 = 1,199,790.15/x - Step 3: Cross multiply
1,398,194.79x = 2,087,084.84 × 1,199,790.15 - Step 4: Simplify right side
1,398,194.79x = 2,504,063,822,810.90 - Step 5: Solve for x
x = 2,504,063,822,810.90/1,398,194.79 - Step 6: Final answer
x = 1,790,926.31
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.