Finding the Fourth Proportional to 777,083.20, 1,072,351.12 and 432,918.96
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Solution
The fourth proportional to 777,083.20, 1,072,351.12 and 432,918.96 is: 597,414.96
Step by Step Solution
- Step 1: Write the proportion equation
777,083.20 : 1,072,351.12 = 432,918.96 : x - Step 2: Convert to fraction form
777,083.20/1,072,351.12 = 432,918.96/x - Step 3: Cross multiply
777,083.20x = 1,072,351.12 × 432,918.96 - Step 4: Simplify right side
777,083.20x = 464,241,131,625.24 - Step 5: Solve for x
x = 464,241,131,625.24/777,083.20 - Step 6: Final answer
x = 597,414.96
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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.