Finding the Fourth Proportional to 738,878.40, 1,107,855.36 and 312,193.44
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Solution
The fourth proportional to 738,878.40, 1,107,855.36 and 312,193.44 is: 468,094.85
Step by Step Solution
- Step 1: Write the proportion equation
738,878.40 : 1,107,855.36 = 312,193.44 : x - Step 2: Convert to fraction form
738,878.40/1,107,855.36 = 312,193.44/x - Step 3: Cross multiply
738,878.40x = 1,107,855.36 × 312,193.44 - Step 4: Simplify right side
738,878.40x = 345,865,175,860.84 - Step 5: Solve for x
x = 345,865,175,860.84/738,878.40 - Step 6: Final answer
x = 468,094.85
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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.