Finding the Fourth Proportional to 465,988.25, 642,909.11 and 379,799.19
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Solution
The fourth proportional to 465,988.25, 642,909.11 and 379,799.19 is: 523,996.81
Step by Step Solution
- Step 1: Write the proportion equation
465,988.25 : 642,909.11 = 379,799.19 : x - Step 2: Convert to fraction form
465,988.25/642,909.11 = 379,799.19/x - Step 3: Cross multiply
465,988.25x = 642,909.11 × 379,799.19 - Step 4: Simplify right side
465,988.25x = 244,176,357,322.63 - Step 5: Solve for x
x = 244,176,357,322.63/465,988.25 - Step 6: Final answer
x = 523,996.81
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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.