Finding the Fourth Proportional to 1,820,639.26, 2,505,740.97 and 1,336,437.46
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Solution
The fourth proportional to 1,820,639.26, 2,505,740.97 and 1,336,437.46 is: 1,839,335.32
Step by Step Solution
- Step 1: Write the proportion equation
1,820,639.26 : 2,505,740.97 = 1,336,437.46 : x - Step 2: Convert to fraction form
1,820,639.26/2,505,740.97 = 1,336,437.46/x - Step 3: Cross multiply
1,820,639.26x = 2,505,740.97 × 1,336,437.46 - Step 4: Simplify right side
1,820,639.26x = 3,348,766,097,364.74 - Step 5: Solve for x
x = 3,348,766,097,364.74/1,820,639.26 - Step 6: Final answer
x = 1,839,335.32
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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.