Finding the Fourth Proportional to 718,992.08, 992,203.53 and 396,715.76
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Solution
The fourth proportional to 718,992.08, 992,203.53 and 396,715.76 is: 547,464.69
Step by Step Solution
- Step 1: Write the proportion equation
718,992.08 : 992,203.53 = 396,715.76 : x - Step 2: Convert to fraction form
718,992.08/992,203.53 = 396,715.76/x - Step 3: Cross multiply
718,992.08x = 992,203.53 × 396,715.76 - Step 4: Simplify right side
718,992.08x = 393,622,777,478.63 - Step 5: Solve for x
x = 393,622,777,478.63/718,992.08 - Step 6: Final answer
x = 547,464.69
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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.