Finding the Fourth Proportional to 703,418.81, 970,716.62 and 381,137.63
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Solution
The fourth proportional to 703,418.81, 970,716.62 and 381,137.63 is: 525,969.20
Step by Step Solution
- Step 1: Write the proportion equation
703,418.81 : 970,716.62 = 381,137.63 : x - Step 2: Convert to fraction form
703,418.81/970,716.62 = 381,137.63/x - Step 3: Cross multiply
703,418.81x = 970,716.62 × 381,137.63 - Step 4: Simplify right side
703,418.81x = 369,976,628,047.67 - Step 5: Solve for x
x = 369,976,628,047.67/703,418.81 - Step 6: Final answer
x = 525,969.20
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1.5x scale
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.