Finding the Fourth Proportional to 450,190.08, 621,453.60 and 280,508.08
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Solution
The fourth proportional to 450,190.08, 621,453.60 and 280,508.08 is: 387,220.34
Step by Step Solution
- Step 1: Write the proportion equation
450,190.08 : 621,453.60 = 280,508.08 : x - Step 2: Convert to fraction form
450,190.08/621,453.60 = 280,508.08/x - Step 3: Cross multiply
450,190.08x = 621,453.60 × 280,508.08 - Step 4: Simplify right side
450,190.08x = 174,322,756,145.09 - Step 5: Solve for x
x = 174,322,756,145.09/450,190.08 - Step 6: Final answer
x = 387,220.34
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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.