Finding the Fourth Proportional to 775,478.49, 1,163,218.15 and 243,040.99
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Solution
The fourth proportional to 775,478.49, 1,163,218.15 and 243,040.99 is: 364,561.62
Step by Step Solution
- Step 1: Write the proportion equation
775,478.49 : 1,163,218.15 = 243,040.99 : x - Step 2: Convert to fraction form
775,478.49/1,163,218.15 = 243,040.99/x - Step 3: Cross multiply
775,478.49x = 1,163,218.15 × 243,040.99 - Step 4: Simplify right side
775,478.49x = 282,709,690,761.97 - Step 5: Solve for x
x = 282,709,690,761.97/775,478.49 - Step 6: Final answer
x = 364,561.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.