Finding the Fourth Proportional to 512,955.93, 707,915.84 and 283,508.28
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Solution
The fourth proportional to 512,955.93, 707,915.84 and 283,508.28 is: 391,261.69
Step by Step Solution
- Step 1: Write the proportion equation
512,955.93 : 707,915.84 = 283,508.28 : x - Step 2: Convert to fraction form
512,955.93/707,915.84 = 283,508.28/x - Step 3: Cross multiply
512,955.93x = 707,915.84 × 283,508.28 - Step 4: Simplify right side
512,955.93x = 200,700,002,183.16 - Step 5: Solve for x
x = 200,700,002,183.16/512,955.93 - Step 6: Final answer
x = 391,261.69
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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.