Finding the Fourth Proportional to 489,209.40, 733,814.10 and 347,491.80
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Solution
The fourth proportional to 489,209.40, 733,814.10 and 347,491.80 is: 521,237.70
Step by Step Solution
- Step 1: Write the proportion equation
489,209.40 : 733,814.10 = 347,491.80 : x - Step 2: Convert to fraction form
489,209.40/733,814.10 = 347,491.80/x - Step 3: Cross multiply
489,209.40x = 733,814.10 × 347,491.80 - Step 4: Simplify right side
489,209.40x = 254,994,382,474.38 - Step 5: Solve for x
x = 254,994,382,474.38/489,209.40 - Step 6: Final answer
x = 521,237.70
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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.