Finding the Fourth Proportional to 1,492,185.12, 2,059,218.09 and 813,121.62
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Solution
The fourth proportional to 1,492,185.12, 2,059,218.09 and 813,121.62 is: 1,122,109.27
Step by Step Solution
- Step 1: Write the proportion equation
1,492,185.12 : 2,059,218.09 = 813,121.62 : x - Step 2: Convert to fraction form
1,492,185.12/2,059,218.09 = 813,121.62/x - Step 3: Cross multiply
1,492,185.12x = 2,059,218.09 × 813,121.62 - Step 4: Simplify right side
1,492,185.12x = 1,674,394,749,274.11 - Step 5: Solve for x
x = 1,674,394,749,274.11/1,492,185.12 - Step 6: Final answer
x = 1,122,109.27
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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.