Finding the Fourth Proportional to 324,944.64, 447,426.72 and 284,431.68
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Solution
The fourth proportional to 324,944.64, 447,426.72 and 284,431.68 is: 391,643.12
Step by Step Solution
- Step 1: Write the proportion equation
324,944.64 : 447,426.72 = 284,431.68 : x - Step 2: Convert to fraction form
324,944.64/447,426.72 = 284,431.68/x - Step 3: Cross multiply
324,944.64x = 447,426.72 × 284,431.68 - Step 4: Simplify right side
324,944.64x = 127,262,333,646.49 - Step 5: Solve for x
x = 127,262,333,646.49/324,944.64 - Step 6: Final answer
x = 391,643.12
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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.