Finding the Fourth Proportional to 641,279.08, 884,991.18 and 354,794.50
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Solution
The fourth proportional to 641,279.08, 884,991.18 and 354,794.50 is: 489,630.82
Step by Step Solution
- Step 1: Write the proportion equation
641,279.08 : 884,991.18 = 354,794.50 : x - Step 2: Convert to fraction form
641,279.08/884,991.18 = 354,794.50/x - Step 3: Cross multiply
641,279.08x = 884,991.18 × 354,794.50 - Step 4: Simplify right side
641,279.08x = 313,990,003,212.51 - Step 5: Solve for x
x = 313,990,003,212.51/641,279.08 - Step 6: Final answer
x = 489,630.82
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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.