Finding the Fourth Proportional to 608,518.80, 839,476.56 and 393,728.88
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Solution
The fourth proportional to 608,518.80, 839,476.56 and 393,728.88 is: 543,165.09
Step by Step Solution
- Step 1: Write the proportion equation
608,518.80 : 839,476.56 = 393,728.88 : x - Step 2: Convert to fraction form
608,518.80/839,476.56 = 393,728.88/x - Step 3: Cross multiply
608,518.80x = 839,476.56 × 393,728.88 - Step 4: Simplify right side
608,518.80x = 330,526,165,755.05 - Step 5: Solve for x
x = 330,526,165,755.05/608,518.80 - Step 6: Final answer
x = 543,165.09
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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.