Finding the Fourth Proportional to 612,984.66, 919,467.74 and 275,787.19
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Solution
The fourth proportional to 612,984.66, 919,467.74 and 275,787.19 is: 413,676.63
Step by Step Solution
- Step 1: Write the proportion equation
612,984.66 : 919,467.74 = 275,787.19 : x - Step 2: Convert to fraction form
612,984.66/919,467.74 = 275,787.19/x - Step 3: Cross multiply
612,984.66x = 919,467.74 × 275,787.19 - Step 4: Simplify right side
612,984.66x = 253,577,426,149.05 - Step 5: Solve for x
x = 253,577,426,149.05/612,984.66 - Step 6: Final answer
x = 413,676.63
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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.