Finding the Fourth Proportional to 368,464.80, 552,697.20 and 324,919.20
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Solution
The fourth proportional to 368,464.80, 552,697.20 and 324,919.20 is: 487,378.80
Step by Step Solution
- Step 1: Write the proportion equation
368,464.80 : 552,697.20 = 324,919.20 : x - Step 2: Convert to fraction form
368,464.80/552,697.20 = 324,919.20/x - Step 3: Cross multiply
368,464.80x = 552,697.20 × 324,919.20 - Step 4: Simplify right side
368,464.80x = 179,581,932,066.24 - Step 5: Solve for x
x = 179,581,932,066.24/368,464.80 - Step 6: Final answer
x = 487,378.80
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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.