Finding the Fourth Proportional to 512,042.08, 706,744.56 and 311,006.56
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Solution
The fourth proportional to 512,042.08, 706,744.56 and 311,006.56 is: 429,265.88
Step by Step Solution
- Step 1: Write the proportion equation
512,042.08 : 706,744.56 = 311,006.56 : x - Step 2: Convert to fraction form
512,042.08/706,744.56 = 311,006.56/x - Step 3: Cross multiply
512,042.08x = 706,744.56 × 311,006.56 - Step 4: Simplify right side
512,042.08x = 219,802,194,404.31 - Step 5: Solve for x
x = 219,802,194,404.31/512,042.08 - Step 6: Final answer
x = 429,265.88
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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.