Finding the Fourth Proportional to 693,823.81, 1,040,884.12 and 207,544.05
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Solution
The fourth proportional to 693,823.81, 1,040,884.12 and 207,544.05 is: 311,360.47
Step by Step Solution
- Step 1: Write the proportion equation
693,823.81 : 1,040,884.12 = 207,544.05 : x - Step 2: Convert to fraction form
693,823.81/1,040,884.12 = 207,544.05/x - Step 3: Cross multiply
693,823.81x = 1,040,884.12 × 207,544.05 - Step 4: Simplify right side
693,823.81x = 216,029,305,326.63 - Step 5: Solve for x
x = 216,029,305,326.63/693,823.81 - Step 6: Final answer
x = 311,360.47
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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.