Finding the Fourth Proportional to 3,888,145.80, 5,832,218.70 and 3,258,289.80
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Solution
The fourth proportional to 3,888,145.80, 5,832,218.70 and 3,258,289.80 is: 4,887,434.70
Step by Step Solution
- Step 1: Write the proportion equation
3,888,145.80 : 5,832,218.70 = 3,258,289.80 : x - Step 2: Convert to fraction form
3,888,145.80/5,832,218.70 = 3,258,289.80/x - Step 3: Cross multiply
3,888,145.80x = 5,832,218.70 × 3,258,289.80 - Step 4: Simplify right side
3,888,145.80x = 19,003,058,701,579.26 - Step 5: Solve for x
x = 19,003,058,701,579.26/3,888,145.80 - Step 6: Final answer
x = 4,887,434.70
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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.