Finding the Fourth Proportional to 3,998,697.36, 5,512,462.08 and 2,850,784.80
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Solution
The fourth proportional to 3,998,697.36, 5,512,462.08 and 2,850,784.80 is: 3,929,990.62
Step by Step Solution
- Step 1: Write the proportion equation
3,998,697.36 : 5,512,462.08 = 2,850,784.80 : x - Step 2: Convert to fraction form
3,998,697.36/5,512,462.08 = 2,850,784.80/x - Step 3: Cross multiply
3,998,697.36x = 5,512,462.08 × 2,850,784.80 - Step 4: Simplify right side
3,998,697.36x = 15,714,843,108,240.38 - Step 5: Solve for x
x = 15,714,843,108,240.38/3,998,697.36 - Step 6: Final answer
x = 3,929,990.62
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.