Finding the Fourth Proportional to 511,783.52, 768,340.49 and 393,537.87
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Solution
The fourth proportional to 511,783.52, 768,340.49 and 393,537.87 is: 590,818.32
Step by Step Solution
- Step 1: Write the proportion equation
511,783.52 : 768,340.49 = 393,537.87 : x - Step 2: Convert to fraction form
511,783.52/768,340.49 = 393,537.87/x - Step 3: Cross multiply
511,783.52x = 768,340.49 × 393,537.87 - Step 4: Simplify right side
511,783.52x = 302,371,077,901.67 - Step 5: Solve for x
x = 302,371,077,901.67/511,783.52 - Step 6: Final answer
x = 590,818.32
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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.