Finding the Fourth Proportional to 816,782.09, 1,127,172.58 and 449,273.75
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Solution
The fourth proportional to 816,782.09, 1,127,172.58 and 449,273.75 is: 620,005.08
Step by Step Solution
- Step 1: Write the proportion equation
816,782.09 : 1,127,172.58 = 449,273.75 : x - Step 2: Convert to fraction form
816,782.09/1,127,172.58 = 449,273.75/x - Step 3: Cross multiply
816,782.09x = 1,127,172.58 × 449,273.75 - Step 4: Simplify right side
816,782.09x = 506,409,045,154.73 - Step 5: Solve for x
x = 506,409,045,154.73/816,782.09 - Step 6: Final answer
x = 620,005.08
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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.