Finding the Fourth Proportional to 394,991.24, 592,548.30 and 128,689.76
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Solution
The fourth proportional to 394,991.24, 592,548.30 and 128,689.76 is: 193,054.66
Step by Step Solution
- Step 1: Write the proportion equation
394,991.24 : 592,548.30 = 128,689.76 : x - Step 2: Convert to fraction form
394,991.24/592,548.30 = 128,689.76/x - Step 3: Cross multiply
394,991.24x = 592,548.30 × 128,689.76 - Step 4: Simplify right side
394,991.24x = 76,254,898,515.41 - Step 5: Solve for x
x = 76,254,898,515.41/394,991.24 - Step 6: Final answer
x = 193,054.66
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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.