Finding the Fourth Proportional to 512,239.80, 768,359.70 and 246,519.30
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Solution
The fourth proportional to 512,239.80, 768,359.70 and 246,519.30 is: 369,778.95
Step by Step Solution
- Step 1: Write the proportion equation
512,239.80 : 768,359.70 = 246,519.30 : x - Step 2: Convert to fraction form
512,239.80/768,359.70 = 246,519.30/x - Step 3: Cross multiply
512,239.80x = 768,359.70 × 246,519.30 - Step 4: Simplify right side
512,239.80x = 189,415,495,392.21 - Step 5: Solve for x
x = 189,415,495,392.21/512,239.80 - Step 6: Final answer
x = 369,778.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.