Finding the Fourth Proportional to 512,576.44, 707,356.82 and 283,129.61
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Solution
The fourth proportional to 512,576.44, 707,356.82 and 283,129.61 is: 390,719.59
Step by Step Solution
- Step 1: Write the proportion equation
512,576.44 : 707,356.82 = 283,129.61 : x - Step 2: Convert to fraction form
512,576.44/707,356.82 = 283,129.61/x - Step 3: Cross multiply
512,576.44x = 707,356.82 × 283,129.61 - Step 4: Simplify right side
512,576.44x = 200,273,657,748.48 - Step 5: Solve for x
x = 200,273,657,748.48/512,576.44 - Step 6: Final answer
x = 390,719.59
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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.