Finding the Fourth Proportional to 394,903.68, 592,242.53 and 128,687.46
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Solution
The fourth proportional to 394,903.68, 592,242.53 and 128,687.46 is: 192,994.37
Step by Step Solution
- Step 1: Write the proportion equation
394,903.68 : 592,242.53 = 128,687.46 : x - Step 2: Convert to fraction form
394,903.68/592,242.53 = 128,687.46/x - Step 3: Cross multiply
394,903.68x = 592,242.53 × 128,687.46 - Step 4: Simplify right side
394,903.68x = 76,214,186,246.24 - Step 5: Solve for x
x = 76,214,186,246.24/394,903.68 - Step 6: Final answer
x = 192,994.37
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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.