Finding the Fourth Proportional to 1,214,135.60, 1,821,201.60 and 361,203.44
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Solution
The fourth proportional to 1,214,135.60, 1,821,201.60 and 361,203.44 is: 541,804.62
Step by Step Solution
- Step 1: Write the proportion equation
1,214,135.60 : 1,821,201.60 = 361,203.44 : x - Step 2: Convert to fraction form
1,214,135.60/1,821,201.60 = 361,203.44/x - Step 3: Cross multiply
1,214,135.60x = 1,821,201.60 × 361,203.44 - Step 4: Simplify right side
1,214,135.60x = 657,824,282,853.50 - Step 5: Solve for x
x = 657,824,282,853.50/1,214,135.60 - Step 6: Final answer
x = 541,804.62
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1.5x scale
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.