Finding the Fourth Proportional to 1,949,791.40, 2,690,693.70 and 1,090,341.80
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Solution
The fourth proportional to 1,949,791.40, 2,690,693.70 and 1,090,341.80 is: 1,504,661.38
Step by Step Solution
- Step 1: Write the proportion equation
1,949,791.40 : 2,690,693.70 = 1,090,341.80 : x - Step 2: Convert to fraction form
1,949,791.40/2,690,693.70 = 1,090,341.80/x - Step 3: Cross multiply
1,949,791.40x = 2,690,693.70 × 1,090,341.80 - Step 4: Simplify right side
1,949,791.40x = 2,933,775,812,106.66 - Step 5: Solve for x
x = 2,933,775,812,106.66/1,949,791.40 - Step 6: Final answer
x = 1,504,661.38
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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.