Finding the Fourth Proportional to 890,470.67, 1,229,128.63 and 568,180.17
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Solution
The fourth proportional to 890,470.67, 1,229,128.63 and 568,180.17 is: 784,266.73
Step by Step Solution
- Step 1: Write the proportion equation
890,470.67 : 1,229,128.63 = 568,180.17 : x - Step 2: Convert to fraction form
890,470.67/1,229,128.63 = 568,180.17/x - Step 3: Cross multiply
890,470.67x = 1,229,128.63 × 568,180.17 - Step 4: Simplify right side
890,470.67x = 698,366,512,524.82 - Step 5: Solve for x
x = 698,366,512,524.82/890,470.67 - Step 6: Final answer
x = 784,266.73
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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.