Finding the Fourth Proportional to 987,409.09, 1,481,102.70 and 313,472.28
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Solution
The fourth proportional to 987,409.09, 1,481,102.70 and 313,472.28 is: 470,204.95
Step by Step Solution
- Step 1: Write the proportion equation
987,409.09 : 1,481,102.70 = 313,472.28 : x - Step 2: Convert to fraction form
987,409.09/1,481,102.70 = 313,472.28/x - Step 3: Cross multiply
987,409.09x = 1,481,102.70 × 313,472.28 - Step 4: Simplify right side
987,409.09x = 464,284,640,283.16 - Step 5: Solve for x
x = 464,284,640,283.16/987,409.09 - Step 6: Final answer
x = 470,204.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.