Finding the Fourth Proportional to 368,452.80, 552,679.20 and 324,907.20
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Solution
The fourth proportional to 368,452.80, 552,679.20 and 324,907.20 is: 487,360.80
Step by Step Solution
- Step 1: Write the proportion equation
368,452.80 : 552,679.20 = 324,907.20 : x - Step 2: Convert to fraction form
368,452.80/552,679.20 = 324,907.20/x - Step 3: Cross multiply
368,452.80x = 552,679.20 × 324,907.20 - Step 4: Simplify right side
368,452.80x = 179,569,451,370.24 - Step 5: Solve for x
x = 179,569,451,370.24/368,452.80 - Step 6: Final answer
x = 487,360.80
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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.