Finding the Fourth Proportional to 412,117.20, 618,175.80 and 376,687.80
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Solution
The fourth proportional to 412,117.20, 618,175.80 and 376,687.80 is: 565,031.70
Step by Step Solution
- Step 1: Write the proportion equation
412,117.20 : 618,175.80 = 376,687.80 : x - Step 2: Convert to fraction form
412,117.20/618,175.80 = 376,687.80/x - Step 3: Cross multiply
412,117.20x = 618,175.80 × 376,687.80 - Step 4: Simplify right side
412,117.20x = 232,859,282,115.24 - Step 5: Solve for x
x = 232,859,282,115.24/412,117.20 - Step 6: Final answer
x = 565,031.70
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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.