Finding the Fourth Proportional to 777,072.81, 1,165,313.97 and 371,849.07
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Solution
The fourth proportional to 777,072.81, 1,165,313.97 and 371,849.07 is: 557,632.32
Step by Step Solution
- Step 1: Write the proportion equation
777,072.81 : 1,165,313.97 = 371,849.07 : x - Step 2: Convert to fraction form
777,072.81/1,165,313.97 = 371,849.07/x - Step 3: Cross multiply
777,072.81x = 1,165,313.97 × 371,849.07 - Step 4: Simplify right side
777,072.81x = 433,320,916,002.51 - Step 5: Solve for x
x = 433,320,916,002.51/777,072.81 - Step 6: Final answer
x = 557,632.32
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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.