Finding the Fourth Proportional to 690,648.68, 952,968.68 and 384,717.44
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Solution
The fourth proportional to 690,648.68, 952,968.68 and 384,717.44 is: 530,839.60
Step by Step Solution
- Step 1: Write the proportion equation
690,648.68 : 952,968.68 = 384,717.44 : x - Step 2: Convert to fraction form
690,648.68/952,968.68 = 384,717.44/x - Step 3: Cross multiply
690,648.68x = 952,968.68 × 384,717.44 - Step 4: Simplify right side
690,648.68x = 366,623,670,969.78 - Step 5: Solve for x
x = 366,623,670,969.78/690,648.68 - Step 6: Final answer
x = 530,839.60
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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.