Finding the Fourth Proportional to 479,037.68, 661,049.76 and 274,944.96
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Solution
The fourth proportional to 479,037.68, 661,049.76 and 274,944.96 is: 379,411.28
Step by Step Solution
- Step 1: Write the proportion equation
479,037.68 : 661,049.76 = 274,944.96 : x - Step 2: Convert to fraction form
479,037.68/661,049.76 = 274,944.96/x - Step 3: Cross multiply
479,037.68x = 661,049.76 × 274,944.96 - Step 4: Simplify right side
479,037.68x = 181,752,299,305.69 - Step 5: Solve for x
x = 181,752,299,305.69/479,037.68 - Step 6: Final answer
x = 379,411.28
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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.