Finding the Fourth Proportional to 3,460,615.11, 4,775,503.40 and 1,990,412.63
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Solution
The fourth proportional to 3,460,615.11, 4,775,503.40 and 1,990,412.63 is: 2,746,685.77
Step by Step Solution
- Step 1: Write the proportion equation
3,460,615.11 : 4,775,503.40 = 1,990,412.63 : x - Step 2: Convert to fraction form
3,460,615.11/4,775,503.40 = 1,990,412.63/x - Step 3: Cross multiply
3,460,615.11x = 4,775,503.40 × 1,990,412.63 - Step 4: Simplify right side
3,460,615.11x = 9,505,222,273,510.55 - Step 5: Solve for x
x = 9,505,222,273,510.55/3,460,615.11 - Step 6: Final answer
x = 2,746,685.77
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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.