Finding the Fourth Proportional to 743,916.09, 1,115,243.55 and 294,954.15
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Solution
The fourth proportional to 743,916.09, 1,115,243.55 and 294,954.15 is: 442,181.21
Step by Step Solution
- Step 1: Write the proportion equation
743,916.09 : 1,115,243.55 = 294,954.15 : x - Step 2: Convert to fraction form
743,916.09/1,115,243.55 = 294,954.15/x - Step 3: Cross multiply
743,916.09x = 1,115,243.55 × 294,954.15 - Step 4: Simplify right side
743,916.09x = 328,945,713,333.23 - Step 5: Solve for x
x = 328,945,713,333.23/743,916.09 - Step 6: Final answer
x = 442,181.21
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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.