Finding the Fourth Proportional to 749,464.68, 1,123,792.21 and 388,741.31
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Solution
The fourth proportional to 749,464.68, 1,123,792.21 and 388,741.31 is: 582,901.99
Step by Step Solution
- Step 1: Write the proportion equation
749,464.68 : 1,123,792.21 = 388,741.31 : x - Step 2: Convert to fraction form
749,464.68/1,123,792.21 = 388,741.31/x - Step 3: Cross multiply
749,464.68x = 1,123,792.21 × 388,741.31 - Step 4: Simplify right side
749,464.68x = 436,864,455,883.20 - Step 5: Solve for x
x = 436,864,455,883.20/749,464.68 - Step 6: Final answer
x = 582,901.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.