Finding the Fourth Proportional to 475,717.72, 656,834.86 and 306,247.08
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Solution
The fourth proportional to 475,717.72, 656,834.86 and 306,247.08 is: 422,842.68
Step by Step Solution
- Step 1: Write the proportion equation
475,717.72 : 656,834.86 = 306,247.08 : x - Step 2: Convert to fraction form
475,717.72/656,834.86 = 306,247.08/x - Step 3: Cross multiply
475,717.72x = 656,834.86 × 306,247.08 - Step 4: Simplify right side
475,717.72x = 201,153,757,917.21 - Step 5: Solve for x
x = 201,153,757,917.21/475,717.72 - Step 6: Final answer
x = 422,842.68
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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.