Finding the Fourth Proportional to 765,283.36, 1,147,963.92 and 259,903.84
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Solution
The fourth proportional to 765,283.36, 1,147,963.92 and 259,903.84 is: 389,868.96
Step by Step Solution
- Step 1: Write the proportion equation
765,283.36 : 1,147,963.92 = 259,903.84 : x - Step 2: Convert to fraction form
765,283.36/1,147,963.92 = 259,903.84/x - Step 3: Cross multiply
765,283.36x = 1,147,963.92 × 259,903.84 - Step 4: Simplify right side
765,283.36x = 298,360,230,989.45 - Step 5: Solve for x
x = 298,360,230,989.45/765,283.36 - Step 6: Final answer
x = 389,868.96
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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.