Finding the Fourth Proportional to 3,758,215.12, 5,184,167.88 and 2,398,555.60
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Solution
The fourth proportional to 3,758,215.12, 5,184,167.88 and 2,398,555.60 is: 3,308,622.45
Step by Step Solution
- Step 1: Write the proportion equation
3,758,215.12 : 5,184,167.88 = 2,398,555.60 : x - Step 2: Convert to fraction form
3,758,215.12/5,184,167.88 = 2,398,555.60/x - Step 3: Cross multiply
3,758,215.12x = 5,184,167.88 × 2,398,555.60 - Step 4: Simplify right side
3,758,215.12x = 12,434,514,899,914.13 - Step 5: Solve for x
x = 12,434,514,899,914.13/3,758,215.12 - Step 6: Final answer
x = 3,308,622.45
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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.