Finding the Fourth Proportional to 641,138.24, 884,788.80 and 354,684.48
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Solution
The fourth proportional to 641,138.24, 884,788.80 and 354,684.48 is: 489,474.56
Step by Step Solution
- Step 1: Write the proportion equation
641,138.24 : 884,788.80 = 354,684.48 : x - Step 2: Convert to fraction form
641,138.24/884,788.80 = 354,684.48/x - Step 3: Cross multiply
641,138.24x = 884,788.80 × 354,684.48 - Step 4: Simplify right side
641,138.24x = 313,820,855,437.82 - Step 5: Solve for x
x = 313,820,855,437.82/641,138.24 - Step 6: Final answer
x = 489,474.56
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1.5x scale
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.