Finding the Fourth Proportional to 902,757.94, 1,245,844.12 and 515,637.06
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Solution
The fourth proportional to 902,757.94, 1,245,844.12 and 515,637.06 is: 711,600.94
Step by Step Solution
- Step 1: Write the proportion equation
902,757.94 : 1,245,844.12 = 515,637.06 : x - Step 2: Convert to fraction form
902,757.94/1,245,844.12 = 515,637.06/x - Step 3: Cross multiply
902,757.94x = 1,245,844.12 × 515,637.06 - Step 4: Simplify right side
902,757.94x = 642,403,399,255.09 - Step 5: Solve for x
x = 642,403,399,255.09/902,757.94 - Step 6: Final answer
x = 711,600.94
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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.