Finding the Fourth Proportional to 426,989.97, 640,463.09 and 127,473.03
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Solution
The fourth proportional to 426,989.97, 640,463.09 and 127,473.03 is: 191,203.02
Step by Step Solution
- Step 1: Write the proportion equation
426,989.97 : 640,463.09 = 127,473.03 : x - Step 2: Convert to fraction form
426,989.97/640,463.09 = 127,473.03/x - Step 3: Cross multiply
426,989.97x = 640,463.09 × 127,473.03 - Step 4: Simplify right side
426,989.97x = 81,641,770,048.10 - Step 5: Solve for x
x = 81,641,770,048.10/426,989.97 - Step 6: Final answer
x = 191,203.02
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.