Finding the Fourth Proportional to 415,052.10, 622,578.15 and 412,427.70
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Solution
The fourth proportional to 415,052.10, 622,578.15 and 412,427.70 is: 618,641.55
Step by Step Solution
- Step 1: Write the proportion equation
415,052.10 : 622,578.15 = 412,427.70 : x - Step 2: Convert to fraction form
415,052.10/622,578.15 = 412,427.70/x - Step 3: Cross multiply
415,052.10x = 622,578.15 × 412,427.70 - Step 4: Simplify right side
415,052.10x = 256,768,474,474.76 - Step 5: Solve for x
x = 256,768,474,474.76/415,052.10 - Step 6: Final answer
x = 618,641.55
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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.