Finding the Fourth Proportional to 760,262.63, 1,049,162.42 and 420,752.75
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Solution
The fourth proportional to 760,262.63, 1,049,162.42 and 420,752.75 is: 580,638.79
Step by Step Solution
- Step 1: Write the proportion equation
760,262.63 : 1,049,162.42 = 420,752.75 : x - Step 2: Convert to fraction form
760,262.63/1,049,162.42 = 420,752.75/x - Step 3: Cross multiply
760,262.63x = 1,049,162.42 × 420,752.75 - Step 4: Simplify right side
760,262.63x = 441,437,969,217.73 - Step 5: Solve for x
x = 441,437,969,217.73/760,262.63 - Step 6: Final answer
x = 580,638.79
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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.