Finding the Fourth Proportional to 464,328.81, 640,909.82 and 303,208.88
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Solution
The fourth proportional to 464,328.81, 640,909.82 and 303,208.88 is: 418,517.09
Step by Step Solution
- Step 1: Write the proportion equation
464,328.81 : 640,909.82 = 303,208.88 : x - Step 2: Convert to fraction form
464,328.81/640,909.82 = 303,208.88/x - Step 3: Cross multiply
464,328.81x = 640,909.82 × 303,208.88 - Step 4: Simplify right side
464,328.81x = 194,329,543,982.61 - Step 5: Solve for x
x = 194,329,543,982.61/464,328.81 - Step 6: Final answer
x = 418,517.09
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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.