Finding the Fourth Proportional to 770,701.28, 1,063,550.70 and 421,839.92
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Solution
The fourth proportional to 770,701.28, 1,063,550.70 and 421,839.92 is: 582,129.75
Step by Step Solution
- Step 1: Write the proportion equation
770,701.28 : 1,063,550.70 = 421,839.92 : x - Step 2: Convert to fraction form
770,701.28/1,063,550.70 = 421,839.92/x - Step 3: Cross multiply
770,701.28x = 1,063,550.70 × 421,839.92 - Step 4: Simplify right side
770,701.28x = 448,648,142,203.94 - Step 5: Solve for x
x = 448,648,142,203.94/770,701.28 - Step 6: Final answer
x = 582,129.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.