Finding the Fourth Proportional to 3,924,840.80, 5,887,261.20 and 2,128,584.80
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Solution
The fourth proportional to 3,924,840.80, 5,887,261.20 and 2,128,584.80 is: 3,192,877.20
Step by Step Solution
- Step 1: Write the proportion equation
3,924,840.80 : 5,887,261.20 = 2,128,584.80 : x - Step 2: Convert to fraction form
3,924,840.80/5,887,261.20 = 2,128,584.80/x - Step 3: Cross multiply
3,924,840.80x = 5,887,261.20 × 2,128,584.80 - Step 4: Simplify right side
3,924,840.80x = 12,531,534,703,949.76 - Step 5: Solve for x
x = 12,531,534,703,949.76/3,924,840.80 - Step 6: Final answer
x = 3,192,877.20
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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.