Finding the Fourth Proportional to 2,079,090.80, 3,118,879.20 and 659,290.40
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Solution
The fourth proportional to 2,079,090.80, 3,118,879.20 and 659,290.40 is: 989,012.66
Step by Step Solution
- Step 1: Write the proportion equation
2,079,090.80 : 3,118,879.20 = 659,290.40 : x - Step 2: Convert to fraction form
2,079,090.80/3,118,879.20 = 659,290.40/x - Step 3: Cross multiply
2,079,090.80x = 3,118,879.20 × 659,290.40 - Step 4: Simplify right side
2,079,090.80x = 2,056,247,115,319.68 - Step 5: Solve for x
x = 2,056,247,115,319.68/2,079,090.80 - Step 6: Final answer
x = 989,012.66
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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.