Finding the Fourth Proportional to 415,698.94, 573,621.73 and 306,861.18
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Solution
The fourth proportional to 415,698.94, 573,621.73 and 306,861.18 is: 423,436.83
Step by Step Solution
- Step 1: Write the proportion equation
415,698.94 : 573,621.73 = 306,861.18 : x - Step 2: Convert to fraction form
415,698.94/573,621.73 = 306,861.18/x - Step 3: Cross multiply
415,698.94x = 573,621.73 × 306,861.18 - Step 4: Simplify right side
415,698.94x = 176,022,240,941.44 - Step 5: Solve for x
x = 176,022,240,941.44/415,698.94 - Step 6: Final answer
x = 423,436.83
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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.