Finding the Fourth Proportional to 643,260.26, 887,805.42 and 356,872.62
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Solution
The fourth proportional to 643,260.26, 887,805.42 and 356,872.62 is: 492,543.17
Step by Step Solution
- Step 1: Write the proportion equation
643,260.26 : 887,805.42 = 356,872.62 : x - Step 2: Convert to fraction form
643,260.26/887,805.42 = 356,872.62/x - Step 3: Cross multiply
643,260.26x = 887,805.42 × 356,872.62 - Step 4: Simplify right side
643,260.26x = 316,833,446,285.60 - Step 5: Solve for x
x = 316,833,446,285.60/643,260.26 - Step 6: Final answer
x = 492,543.17
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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.