Finding the Fourth Proportional to 512,664.60, 707,473.71 and 283,236.68
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Solution
The fourth proportional to 512,664.60, 707,473.71 and 283,236.68 is: 390,864.71
Step by Step Solution
- Step 1: Write the proportion equation
512,664.60 : 707,473.71 = 283,236.68 : x - Step 2: Convert to fraction form
512,664.60/707,473.71 = 283,236.68/x - Step 3: Cross multiply
512,664.60x = 707,473.71 × 283,236.68 - Step 4: Simplify right side
512,664.60x = 200,382,501,270.31 - Step 5: Solve for x
x = 200,382,501,270.31/512,664.60 - Step 6: Final answer
x = 390,864.71
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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.