Finding the Fourth Proportional to 786,153.92, 1,084,921.44 and 446,679.68
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Solution
The fourth proportional to 786,153.92, 1,084,921.44 and 446,679.68 is: 616,434.45
Step by Step Solution
- Step 1: Write the proportion equation
786,153.92 : 1,084,921.44 = 446,679.68 : x - Step 2: Convert to fraction form
786,153.92/1,084,921.44 = 446,679.68/x - Step 3: Cross multiply
786,153.92x = 1,084,921.44 × 446,679.68 - Step 4: Simplify right side
786,153.92x = 484,612,361,644.34 - Step 5: Solve for x
x = 484,612,361,644.34/786,153.92 - Step 6: Final answer
x = 616,434.45
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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.