Finding the Fourth Proportional to 455,961.57, 629,313.74 and 300,639.61
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Solution
The fourth proportional to 455,961.57, 629,313.74 and 300,639.61 is: 414,939.88
Step by Step Solution
- Step 1: Write the proportion equation
455,961.57 : 629,313.74 = 300,639.61 : x - Step 2: Convert to fraction form
455,961.57/629,313.74 = 300,639.61/x - Step 3: Cross multiply
455,961.57x = 629,313.74 × 300,639.61 - Step 4: Simplify right side
455,961.57x = 189,196,637,361.24 - Step 5: Solve for x
x = 189,196,637,361.24/455,961.57 - Step 6: Final answer
x = 414,939.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.