Finding the Fourth Proportional to 902,178.09, 1,245,005.74 and 494,295.41
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Solution
The fourth proportional to 902,178.09, 1,245,005.74 and 494,295.41 is: 682,127.64
Step by Step Solution
- Step 1: Write the proportion equation
902,178.09 : 1,245,005.74 = 494,295.41 : x - Step 2: Convert to fraction form
902,178.09/1,245,005.74 = 494,295.41/x - Step 3: Cross multiply
902,178.09x = 1,245,005.74 × 494,295.41 - Step 4: Simplify right side
902,178.09x = 615,400,616,480.63 - Step 5: Solve for x
x = 615,400,616,480.63/902,178.09 - Step 6: Final answer
x = 682,127.64
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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.