Finding the Fourth Proportional to 450,149.54, 620,913.12 and 288,748.94
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Solution
The fourth proportional to 450,149.54, 620,913.12 and 288,748.94 is: 398,285.43
Step by Step Solution
- Step 1: Write the proportion equation
450,149.54 : 620,913.12 = 288,748.94 : x - Step 2: Convert to fraction form
450,149.54/620,913.12 = 288,748.94/x - Step 3: Cross multiply
450,149.54x = 620,913.12 × 288,748.94 - Step 4: Simplify right side
450,149.54x = 179,288,005,232.09 - Step 5: Solve for x
x = 179,288,005,232.09/450,149.54 - Step 6: Final answer
x = 398,285.43
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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.