Finding the Fourth Proportional to 637,620.88, 879,652.68 and 379,446.08
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Solution
The fourth proportional to 637,620.88, 879,652.68 and 379,446.08 is: 523,478.40
Step by Step Solution
- Step 1: Write the proportion equation
637,620.88 : 879,652.68 = 379,446.08 : x - Step 2: Convert to fraction form
637,620.88/879,652.68 = 379,446.08/x - Step 3: Cross multiply
637,620.88x = 879,652.68 × 379,446.08 - Step 4: Simplify right side
637,620.88x = 333,780,761,187.49 - Step 5: Solve for x
x = 333,780,761,187.49/637,620.88 - Step 6: Final answer
x = 523,478.40
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.