Finding the Fourth Proportional to 512,754.36, 707,615.29 and 283,326.49
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Solution
The fourth proportional to 512,754.36, 707,615.29 and 283,326.49 is: 390,998.44
Step by Step Solution
- Step 1: Write the proportion equation
512,754.36 : 707,615.29 = 283,326.49 : x - Step 2: Convert to fraction form
512,754.36/707,615.29 = 283,326.49/x - Step 3: Cross multiply
512,754.36x = 707,615.29 × 283,326.49 - Step 4: Simplify right side
512,754.36x = 200,486,156,386.03 - Step 5: Solve for x
x = 200,486,156,386.03/512,754.36 - Step 6: Final answer
x = 390,998.44
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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.