Finding the Fourth Proportional to 408,900.60, 613,476.41 and 209,361.08
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Solution
The fourth proportional to 408,900.60, 613,476.41 and 209,361.08 is: 314,105.88
Step by Step Solution
- Step 1: Write the proportion equation
408,900.60 : 613,476.41 = 209,361.08 : x - Step 2: Convert to fraction form
408,900.60/613,476.41 = 209,361.08/x - Step 3: Cross multiply
408,900.60x = 613,476.41 × 209,361.08 - Step 4: Simplify right side
408,900.60x = 128,438,084,239.01 - Step 5: Solve for x
x = 128,438,084,239.01/408,900.60 - Step 6: Final answer
x = 314,105.88
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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.