Finding the Fourth Proportional to 1,645,399.24, 2,270,635.14 and 920,238.28
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Solution
The fourth proportional to 1,645,399.24, 2,270,635.14 and 920,238.28 is: 1,269,919.98
Step by Step Solution
- Step 1: Write the proportion equation
1,645,399.24 : 2,270,635.14 = 920,238.28 : x - Step 2: Convert to fraction form
1,645,399.24/2,270,635.14 = 920,238.28/x - Step 3: Cross multiply
1,645,399.24x = 2,270,635.14 × 920,238.28 - Step 4: Simplify right side
1,645,399.24x = 2,089,525,375,741.16 - Step 5: Solve for x
x = 2,089,525,375,741.16/1,645,399.24 - Step 6: Final answer
x = 1,269,919.98
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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.