Finding the Fourth Proportional to 489,133.20, 733,699.80 and 423,523.20
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Solution
The fourth proportional to 489,133.20, 733,699.80 and 423,523.20 is: 635,284.80
Step by Step Solution
- Step 1: Write the proportion equation
489,133.20 : 733,699.80 = 423,523.20 : x - Step 2: Convert to fraction form
489,133.20/733,699.80 = 423,523.20/x - Step 3: Cross multiply
489,133.20x = 733,699.80 × 423,523.20 - Step 4: Simplify right side
489,133.20x = 310,738,887,135.36 - Step 5: Solve for x
x = 310,738,887,135.36/489,133.20 - Step 6: Final answer
x = 635,284.80
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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.