Finding the Fourth Proportional to 743,447.84, 1,025,960.72 and 403,916.09
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Solution
The fourth proportional to 743,447.84, 1,025,960.72 and 403,916.09 is: 557,405.67
Step by Step Solution
- Step 1: Write the proportion equation
743,447.84 : 1,025,960.72 = 403,916.09 : x - Step 2: Convert to fraction form
743,447.84/1,025,960.72 = 403,916.09/x - Step 3: Cross multiply
743,447.84x = 1,025,960.72 × 403,916.09 - Step 4: Simplify right side
743,447.84x = 414,402,035,366.60 - Step 5: Solve for x
x = 414,402,035,366.60/743,447.84 - Step 6: Final answer
x = 557,405.67
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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.