Finding the Fourth Proportional to 923,840.79, 1,265,640.80 and 889,300.68
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Solution
The fourth proportional to 923,840.79, 1,265,640.80 and 889,300.68 is: 1,218,321.63
Step by Step Solution
- Step 1: Write the proportion equation
923,840.79 : 1,265,640.80 = 889,300.68 : x - Step 2: Convert to fraction form
923,840.79/1,265,640.80 = 889,300.68/x - Step 3: Cross multiply
923,840.79x = 1,265,640.80 × 889,300.68 - Step 4: Simplify right side
923,840.79x = 1,125,535,219,629.24 - Step 5: Solve for x
x = 1,125,535,219,629.24/923,840.79 - Step 6: Final answer
x = 1,218,321.63
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.