Finding the Fourth Proportional to 905,970.75, 1,250,207.79 and 498,069.63
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Solution
The fourth proportional to 905,970.75, 1,250,207.79 and 498,069.63 is: 687,318.58
Step by Step Solution
- Step 1: Write the proportion equation
905,970.75 : 1,250,207.79 = 498,069.63 : x - Step 2: Convert to fraction form
905,970.75/1,250,207.79 = 498,069.63/x - Step 3: Cross multiply
905,970.75x = 1,250,207.79 × 498,069.63 - Step 4: Simplify right side
905,970.75x = 622,690,531,388.42 - Step 5: Solve for x
x = 622,690,531,388.42/905,970.75 - Step 6: Final answer
x = 687,318.58
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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.