Finding the Fourth Proportional to 2,180,197.80, 3,272,240.70 and 1,280,514.60
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Solution
The fourth proportional to 2,180,197.80, 3,272,240.70 and 1,280,514.60 is: 1,921,913.69
Step by Step Solution
- Step 1: Write the proportion equation
2,180,197.80 : 3,272,240.70 = 1,280,514.60 : x - Step 2: Convert to fraction form
2,180,197.80/3,272,240.70 = 1,280,514.60/x - Step 3: Cross multiply
2,180,197.80x = 3,272,240.70 × 1,280,514.60 - Step 4: Simplify right side
2,180,197.80x = 4,190,151,991,064.22 - Step 5: Solve for x
x = 4,190,151,991,064.22/2,180,197.80 - Step 6: Final answer
x = 1,921,913.69
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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.