Finding the Fourth Proportional to 512,252.21, 706,250.94 and 420,031.76
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Solution
The fourth proportional to 512,252.21, 706,250.94 and 420,031.76 is: 579,105.02
Step by Step Solution
- Step 1: Write the proportion equation
512,252.21 : 706,250.94 = 420,031.76 : x - Step 2: Convert to fraction form
512,252.21/706,250.94 = 420,031.76/x - Step 3: Cross multiply
512,252.21x = 706,250.94 × 420,031.76 - Step 4: Simplify right side
512,252.21x = 296,647,825,329.85 - Step 5: Solve for x
x = 296,647,825,329.85/512,252.21 - Step 6: Final answer
x = 579,105.02
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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.