Finding the Fourth Proportional to 1,805,153.75, 2,707,709.95 and 438,935.19
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Solution
The fourth proportional to 1,805,153.75, 2,707,709.95 and 438,935.19 is: 658,397.75
Step by Step Solution
- Step 1: Write the proportion equation
1,805,153.75 : 2,707,709.95 = 438,935.19 : x - Step 2: Convert to fraction form
1,805,153.75/2,707,709.95 = 438,935.19/x - Step 3: Cross multiply
1,805,153.75x = 2,707,709.95 × 438,935.19 - Step 4: Simplify right side
1,805,153.75x = 1,188,509,171,762.90 - Step 5: Solve for x
x = 1,188,509,171,762.90/1,805,153.75 - Step 6: Final answer
x = 658,397.75
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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.