Finding the Fourth Proportional to 438,635.28, 605,344.68 and 247,578.96
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Solution
The fourth proportional to 438,635.28, 605,344.68 and 247,578.96 is: 341,674.77
Step by Step Solution
- Step 1: Write the proportion equation
438,635.28 : 605,344.68 = 247,578.96 : x - Step 2: Convert to fraction form
438,635.28/605,344.68 = 247,578.96/x - Step 3: Cross multiply
438,635.28x = 605,344.68 × 247,578.96 - Step 4: Simplify right side
438,635.28x = 149,870,606,315.93 - Step 5: Solve for x
x = 149,870,606,315.93/438,635.28 - Step 6: Final answer
x = 341,674.77
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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.