Finding the Fourth Proportional to 543,702.05, 815,553.08 and 463,220.45
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Solution
The fourth proportional to 543,702.05, 815,553.08 and 463,220.45 is: 694,830.68
Step by Step Solution
- Step 1: Write the proportion equation
543,702.05 : 815,553.08 = 463,220.45 : x - Step 2: Convert to fraction form
543,702.05/815,553.08 = 463,220.45/x - Step 3: Cross multiply
543,702.05x = 815,553.08 × 463,220.45 - Step 4: Simplify right side
543,702.05x = 377,780,862,400.38 - Step 5: Solve for x
x = 377,780,862,400.38/543,702.05 - Step 6: Final answer
x = 694,830.68
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1.5x scale
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.