Finding the Fourth Proportional to 748,338.21, 1,122,950.18 and 275,355.72
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Solution
The fourth proportional to 748,338.21, 1,122,950.18 and 275,355.72 is: 413,196.53
Step by Step Solution
- Step 1: Write the proportion equation
748,338.21 : 1,122,950.18 = 275,355.72 : x - Step 2: Convert to fraction form
748,338.21/1,122,950.18 = 275,355.72/x - Step 3: Cross multiply
748,338.21x = 1,122,950.18 × 275,355.72 - Step 4: Simplify right side
748,338.21x = 309,210,755,338.03 - Step 5: Solve for x
x = 309,210,755,338.03/748,338.21 - Step 6: Final answer
x = 413,196.53
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1.5x scale
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.