Finding the Fourth Proportional to 428,265.65, 590,738.99 and 275,502.75
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Solution
The fourth proportional to 428,265.65, 590,738.99 and 275,502.75 is: 380,021.64
Step by Step Solution
- Step 1: Write the proportion equation
428,265.65 : 590,738.99 = 275,502.75 : x - Step 2: Convert to fraction form
428,265.65/590,738.99 = 275,502.75/x - Step 3: Cross multiply
428,265.65x = 590,738.99 × 275,502.75 - Step 4: Simplify right side
428,265.65x = 162,750,214,899.71 - Step 5: Solve for x
x = 162,750,214,899.71/428,265.65 - Step 6: Final answer
x = 380,021.64
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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.