Finding the Fourth Proportional to 842,759.36, 1,264,150.71 and 274,143.44
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Solution
The fourth proportional to 842,759.36, 1,264,150.71 and 274,143.44 is: 411,218.95
Step by Step Solution
- Step 1: Write the proportion equation
842,759.36 : 1,264,150.71 = 274,143.44 : x - Step 2: Convert to fraction form
842,759.36/1,264,150.71 = 274,143.44/x - Step 3: Cross multiply
842,759.36x = 1,264,150.71 × 274,143.44 - Step 4: Simplify right side
842,759.36x = 346,558,617,997.09 - Step 5: Solve for x
x = 346,558,617,997.09/842,759.36 - Step 6: Final answer
x = 411,218.95
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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.