Finding the Fourth Proportional to 512,733.59, 707,586.62 and 283,305.66
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Solution
The fourth proportional to 512,733.59, 707,586.62 and 283,305.66 is: 390,969.69
Step by Step Solution
- Step 1: Write the proportion equation
512,733.59 : 707,586.62 = 283,305.66 : x - Step 2: Convert to fraction form
512,733.59/707,586.62 = 283,305.66/x - Step 3: Cross multiply
512,733.59x = 707,586.62 × 283,305.66 - Step 4: Simplify right side
512,733.59x = 200,463,291,809.81 - Step 5: Solve for x
x = 200,463,291,809.81/512,733.59 - Step 6: Final answer
x = 390,969.69
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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.