Finding the Fourth Proportional to 916,571.36, 1,374,528.94 and 317,371.60
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Solution
The fourth proportional to 916,571.36, 1,374,528.94 and 317,371.60 is: 475,943.79
Step by Step Solution
- Step 1: Write the proportion equation
916,571.36 : 1,374,528.94 = 317,371.60 : x - Step 2: Convert to fraction form
916,571.36/1,374,528.94 = 317,371.60/x - Step 3: Cross multiply
916,571.36x = 1,374,528.94 × 317,371.60 - Step 4: Simplify right side
916,571.36x = 436,236,448,934.10 - Step 5: Solve for x
x = 436,236,448,934.10/916,571.36 - Step 6: Final answer
x = 475,943.79
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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.