Finding the Fourth Proportional to 522,857.38, 721,543.12 and 296,502.88
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Solution
The fourth proportional to 522,857.38, 721,543.12 and 296,502.88 is: 409,173.94
Step by Step Solution
- Step 1: Write the proportion equation
522,857.38 : 721,543.12 = 296,502.88 : x - Step 2: Convert to fraction form
522,857.38/721,543.12 = 296,502.88/x - Step 3: Cross multiply
522,857.38x = 721,543.12 × 296,502.88 - Step 4: Simplify right side
522,857.38x = 213,939,613,124.19 - Step 5: Solve for x
x = 213,939,613,124.19/522,857.38 - Step 6: Final answer
x = 409,173.94
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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.