Finding the Fourth Proportional to 438,446.80, 657,670.20 and 122,957.20
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Solution
The fourth proportional to 438,446.80, 657,670.20 and 122,957.20 is: 184,435.80
Step by Step Solution
- Step 1: Write the proportion equation
438,446.80 : 657,670.20 = 122,957.20 : x - Step 2: Convert to fraction form
438,446.80/657,670.20 = 122,957.20/x - Step 3: Cross multiply
438,446.80x = 657,670.20 × 122,957.20 - Step 4: Simplify right side
438,446.80x = 80,865,286,315.44 - Step 5: Solve for x
x = 80,865,286,315.44/438,446.80 - Step 6: Final answer
x = 184,435.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.