Finding the Fourth Proportional to 625,163.88, 862,721.36 and 338,681.92
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Solution
The fourth proportional to 625,163.88, 862,721.36 and 338,681.92 is: 467,378.45
Step by Step Solution
- Step 1: Write the proportion equation
625,163.88 : 862,721.36 = 338,681.92 : x - Step 2: Convert to fraction form
625,163.88/862,721.36 = 338,681.92/x - Step 3: Cross multiply
625,163.88x = 862,721.36 × 338,681.92 - Step 4: Simplify right side
625,163.88x = 292,188,126,629.81 - Step 5: Solve for x
x = 292,188,126,629.81/625,163.88 - Step 6: Final answer
x = 467,378.45
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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.