Finding the Fourth Proportional to 512,959.64, 707,920.92 and 283,511.99
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Solution
The fourth proportional to 512,959.64, 707,920.92 and 283,511.99 is: 391,266.79
Step by Step Solution
- Step 1: Write the proportion equation
512,959.64 : 707,920.92 = 283,511.99 : x - Step 2: Convert to fraction form
512,959.64/707,920.92 = 283,511.99/x - Step 3: Cross multiply
512,959.64x = 707,920.92 × 283,511.99 - Step 4: Simplify right side
512,959.64x = 200,704,070,561.63 - Step 5: Solve for x
x = 200,704,070,561.63/512,959.64 - Step 6: Final answer
x = 391,266.79
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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.