Finding the Fourth Proportional to 1,621,203.80, 2,431,931.24 and 541,720.10
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Solution
The fourth proportional to 1,621,203.80, 2,431,931.24 and 541,720.10 is: 812,622.09
Step by Step Solution
- Step 1: Write the proportion equation
1,621,203.80 : 2,431,931.24 = 541,720.10 : x - Step 2: Convert to fraction form
1,621,203.80/2,431,931.24 = 541,720.10/x - Step 3: Cross multiply
1,621,203.80x = 2,431,931.24 × 541,720.10 - Step 4: Simplify right side
1,621,203.80x = 1,317,426,023,720.57 - Step 5: Solve for x
x = 1,317,426,023,720.57/1,621,203.80 - Step 6: Final answer
x = 812,622.09
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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.