Finding the Fourth Proportional to 438,611.37, 605,288.70 and 257,326.44
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Solution
The fourth proportional to 438,611.37, 605,288.70 and 257,326.44 is: 355,113.43
Step by Step Solution
- Step 1: Write the proportion equation
438,611.37 : 605,288.70 = 257,326.44 : x - Step 2: Convert to fraction form
438,611.37/605,288.70 = 257,326.44/x - Step 3: Cross multiply
438,611.37x = 605,288.70 × 257,326.44 - Step 4: Simplify right side
438,611.37x = 155,756,786,343.23 - Step 5: Solve for x
x = 155,756,786,343.23/438,611.37 - Step 6: Final answer
x = 355,113.43
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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.