Finding the Fourth Proportional to 4,258,861.20, 6,388,291.80 and 3,058,246.80
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Solution
The fourth proportional to 4,258,861.20, 6,388,291.80 and 3,058,246.80 is: 4,587,370.20
Step by Step Solution
- Step 1: Write the proportion equation
4,258,861.20 : 6,388,291.80 = 3,058,246.80 : x - Step 2: Convert to fraction form
4,258,861.20/6,388,291.80 = 3,058,246.80/x - Step 3: Cross multiply
4,258,861.20x = 6,388,291.80 × 3,058,246.80 - Step 4: Simplify right side
4,258,861.20x = 19,536,972,954,816.24 - Step 5: Solve for x
x = 19,536,972,954,816.24/4,258,861.20 - Step 6: Final answer
x = 4,587,370.20
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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.