Finding the Fourth Proportional to 756,108.20, 1,134,162.30 and 543,531.80
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Solution
The fourth proportional to 756,108.20, 1,134,162.30 and 543,531.80 is: 815,297.70
Step by Step Solution
- Step 1: Write the proportion equation
756,108.20 : 1,134,162.30 = 543,531.80 : x - Step 2: Convert to fraction form
756,108.20/1,134,162.30 = 543,531.80/x - Step 3: Cross multiply
756,108.20x = 1,134,162.30 × 543,531.80 - Step 4: Simplify right side
756,108.20x = 616,453,276,411.14 - Step 5: Solve for x
x = 616,453,276,411.14/756,108.20 - Step 6: Final answer
x = 815,297.70
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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.