Finding the Fourth Proportional to 741,629.70, 1,112,444.55 and 209,143.80
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Solution
The fourth proportional to 741,629.70, 1,112,444.55 and 209,143.80 is: 313,715.70
Step by Step Solution
- Step 1: Write the proportion equation
741,629.70 : 1,112,444.55 = 209,143.80 : x - Step 2: Convert to fraction form
741,629.70/1,112,444.55 = 209,143.80/x - Step 3: Cross multiply
741,629.70x = 1,112,444.55 × 209,143.80 - Step 4: Simplify right side
741,629.70x = 232,660,880,476.29 - Step 5: Solve for x
x = 232,660,880,476.29/741,629.70 - Step 6: Final answer
x = 313,715.70
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.