Finding the Fourth Proportional to 1,330,484.88, 1,994,816.40 and 477,537.60
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Solution
The fourth proportional to 1,330,484.88, 1,994,816.40 and 477,537.60 is: 715,979.45
Step by Step Solution
- Step 1: Write the proportion equation
1,330,484.88 : 1,994,816.40 = 477,537.60 : x - Step 2: Convert to fraction form
1,330,484.88/1,994,816.40 = 477,537.60/x - Step 3: Cross multiply
1,330,484.88x = 1,994,816.40 × 477,537.60 - Step 4: Simplify right side
1,330,484.88x = 952,599,836,096.64 - Step 5: Solve for x
x = 952,599,836,096.64/1,330,484.88 - Step 6: Final answer
x = 715,979.45
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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.