Finding the Fourth Proportional to 489,809.90, 733,730.70 and 279,201.80
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Solution
The fourth proportional to 489,809.90, 733,730.70 and 279,201.80 is: 418,241.71
Step by Step Solution
- Step 1: Write the proportion equation
489,809.90 : 733,730.70 = 279,201.80 : x - Step 2: Convert to fraction form
489,809.90/733,730.70 = 279,201.80/x - Step 3: Cross multiply
489,809.90x = 733,730.70 × 279,201.80 - Step 4: Simplify right side
489,809.90x = 204,858,932,155.26 - Step 5: Solve for x
x = 204,858,932,155.26/489,809.90 - Step 6: Final answer
x = 418,241.71
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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.