Finding the Fourth Proportional to 640,717.68, 884,147.04 and 354,199.08
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Solution
The fourth proportional to 640,717.68, 884,147.04 and 354,199.08 is: 488,770.76
Step by Step Solution
- Step 1: Write the proportion equation
640,717.68 : 884,147.04 = 354,199.08 : x - Step 2: Convert to fraction form
640,717.68/884,147.04 = 354,199.08/x - Step 3: Cross multiply
640,717.68x = 884,147.04 × 354,199.08 - Step 4: Simplify right side
640,717.68x = 313,164,068,152.72 - Step 5: Solve for x
x = 313,164,068,152.72/640,717.68 - Step 6: Final answer
x = 488,770.76
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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.