Finding the Fourth Proportional to 512,596.20, 768,894.30 and 212,977.20
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Solution
The fourth proportional to 512,596.20, 768,894.30 and 212,977.20 is: 319,465.80
Step by Step Solution
- Step 1: Write the proportion equation
512,596.20 : 768,894.30 = 212,977.20 : x - Step 2: Convert to fraction form
512,596.20/768,894.30 = 212,977.20/x - Step 3: Cross multiply
512,596.20x = 768,894.30 × 212,977.20 - Step 4: Simplify right side
512,596.20x = 163,756,955,109.96 - Step 5: Solve for x
x = 163,756,955,109.96/512,596.20 - Step 6: Final answer
x = 319,465.80
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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.