Finding the Fourth Proportional to 856,378.71, 1,181,786.36 and 474,408.63
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Solution
The fourth proportional to 856,378.71, 1,181,786.36 and 474,408.63 is: 654,674.90
Step by Step Solution
- Step 1: Write the proportion equation
856,378.71 : 1,181,786.36 = 474,408.63 : x - Step 2: Convert to fraction form
856,378.71/1,181,786.36 = 474,408.63/x - Step 3: Cross multiply
856,378.71x = 1,181,786.36 × 474,408.63 - Step 4: Simplify right side
856,378.71x = 560,649,645,628.24 - Step 5: Solve for x
x = 560,649,645,628.24/856,378.71 - Step 6: Final answer
x = 654,674.90
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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.