Finding the Fourth Proportional to 512,858.76, 707,743.35 and 283,409.67
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Solution
The fourth proportional to 512,858.76, 707,743.35 and 283,409.67 is: 391,104.38
Step by Step Solution
- Step 1: Write the proportion equation
512,858.76 : 707,743.35 = 283,409.67 : x - Step 2: Convert to fraction form
512,858.76/707,743.35 = 283,409.67/x - Step 3: Cross multiply
512,858.76x = 707,743.35 × 283,409.67 - Step 4: Simplify right side
512,858.76x = 200,581,309,268.20 - Step 5: Solve for x
x = 200,581,309,268.20/512,858.76 - Step 6: Final answer
x = 391,104.38
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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.