Finding the Fourth Proportional to 489,305.80, 733,958.70 and 209,369.80
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Solution
The fourth proportional to 489,305.80, 733,958.70 and 209,369.80 is: 314,054.70
Step by Step Solution
- Step 1: Write the proportion equation
489,305.80 : 733,958.70 = 209,369.80 : x - Step 2: Convert to fraction form
489,305.80/733,958.70 = 209,369.80/x - Step 3: Cross multiply
489,305.80x = 733,958.70 × 209,369.80 - Step 4: Simplify right side
489,305.80x = 153,668,786,227.26 - Step 5: Solve for x
x = 153,668,786,227.26/489,305.80 - Step 6: Final answer
x = 314,054.70
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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.