Finding the Fourth Proportional to 823,761.80, 1,235,642.70 and 504,897.20
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Solution
The fourth proportional to 823,761.80, 1,235,642.70 and 504,897.20 is: 757,345.80
Step by Step Solution
- Step 1: Write the proportion equation
823,761.80 : 1,235,642.70 = 504,897.20 : x - Step 2: Convert to fraction form
823,761.80/1,235,642.70 = 504,897.20/x - Step 3: Cross multiply
823,761.80x = 1,235,642.70 × 504,897.20 - Step 4: Simplify right side
823,761.80x = 623,872,539,430.44 - Step 5: Solve for x
x = 623,872,539,430.44/823,761.80 - Step 6: Final answer
x = 757,345.80
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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.