Finding the Fourth Proportional to 394,726.70, 544,722.47 and 213,438.21
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Solution
The fourth proportional to 394,726.70, 544,722.47 and 213,438.21 is: 294,544.52
Step by Step Solution
- Step 1: Write the proportion equation
394,726.70 : 544,722.47 = 213,438.21 : x - Step 2: Convert to fraction form
394,726.70/544,722.47 = 213,438.21/x - Step 3: Cross multiply
394,726.70x = 544,722.47 × 213,438.21 - Step 4: Simplify right side
394,726.70x = 116,264,586,634.07 - Step 5: Solve for x
x = 116,264,586,634.07/394,726.70 - Step 6: Final answer
x = 294,544.52
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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.