Finding the Fourth Proportional to 400,063.19, 600,563.61 and 315,880.09
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Solution
The fourth proportional to 400,063.19, 600,563.61 and 315,880.09 is: 474,190.31
Step by Step Solution
- Step 1: Write the proportion equation
400,063.19 : 600,563.61 = 315,880.09 : x - Step 2: Convert to fraction form
400,063.19/600,563.61 = 315,880.09/x - Step 3: Cross multiply
400,063.19x = 600,563.61 × 315,880.09 - Step 4: Simplify right side
400,063.19x = 189,706,085,676.12 - Step 5: Solve for x
x = 189,706,085,676.12/400,063.19 - Step 6: Final answer
x = 474,190.31
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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.