Finding the Fourth Proportional to 656,715.79, 985,129.58 and 207,316.45
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Solution
The fourth proportional to 656,715.79, 985,129.58 and 207,316.45 is: 310,992.32
Step by Step Solution
- Step 1: Write the proportion equation
656,715.79 : 985,129.58 = 207,316.45 : x - Step 2: Convert to fraction form
656,715.79/985,129.58 = 207,316.45/x - Step 3: Cross multiply
656,715.79x = 985,129.58 × 207,316.45 - Step 4: Simplify right side
656,715.79x = 204,233,567,315.59 - Step 5: Solve for x
x = 204,233,567,315.59/656,715.79 - Step 6: Final answer
x = 310,992.32
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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.