Finding the Fourth Proportional to 509,304.54, 702,840.12 and 279,876.62
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Solution
The fourth proportional to 509,304.54, 702,840.12 and 279,876.62 is: 386,229.66
Step by Step Solution
- Step 1: Write the proportion equation
509,304.54 : 702,840.12 = 279,876.62 : x - Step 2: Convert to fraction form
509,304.54/702,840.12 = 279,876.62/x - Step 3: Cross multiply
509,304.54x = 702,840.12 × 279,876.62 - Step 4: Simplify right side
509,304.54x = 196,708,517,185.99 - Step 5: Solve for x
x = 196,708,517,185.99/509,304.54 - Step 6: Final answer
x = 386,229.66
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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.