Finding the Fourth Proportional to 875,890.53, 1,208,949.12 and 494,138.75
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Solution
The fourth proportional to 875,890.53, 1,208,949.12 and 494,138.75 is: 682,035.69
Step by Step Solution
- Step 1: Write the proportion equation
875,890.53 : 1,208,949.12 = 494,138.75 : x - Step 2: Convert to fraction form
875,890.53/1,208,949.12 = 494,138.75/x - Step 3: Cross multiply
875,890.53x = 1,208,949.12 × 494,138.75 - Step 4: Simplify right side
875,890.53x = 597,388,600,925.65 - Step 5: Solve for x
x = 597,388,600,925.65/875,890.53 - Step 6: Final answer
x = 682,035.69
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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.