Finding the Fourth Proportional to 641,117.84, 884,752.07 and 354,636.63
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Solution
The fourth proportional to 641,117.84, 884,752.07 and 354,636.63 is: 489,403.78
Step by Step Solution
- Step 1: Write the proportion equation
641,117.84 : 884,752.07 = 354,636.63 : x - Step 2: Convert to fraction form
641,117.84/884,752.07 = 354,636.63/x - Step 3: Cross multiply
641,117.84x = 884,752.07 × 354,636.63 - Step 4: Simplify right side
641,117.84x = 313,765,490,717.14 - Step 5: Solve for x
x = 313,765,490,717.14/641,117.84 - Step 6: Final answer
x = 489,403.78
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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.