Finding the Fourth Proportional to 486,149.72, 670,842.84 and 304,803.68
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Solution
The fourth proportional to 486,149.72, 670,842.84 and 304,803.68 is: 420,601.63
Step by Step Solution
- Step 1: Write the proportion equation
486,149.72 : 670,842.84 = 304,803.68 : x - Step 2: Convert to fraction form
486,149.72/670,842.84 = 304,803.68/x - Step 3: Cross multiply
486,149.72x = 670,842.84 × 304,803.68 - Step 4: Simplify right side
486,149.72x = 204,475,366,333.65 - Step 5: Solve for x
x = 204,475,366,333.65/486,149.72 - Step 6: Final answer
x = 420,601.63
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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.