Finding the Fourth Proportional to 720,499.60, 1,080,771.36 and 247,178.26
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Solution
The fourth proportional to 720,499.60, 1,080,771.36 and 247,178.26 is: 370,774.92
Step by Step Solution
- Step 1: Write the proportion equation
720,499.60 : 1,080,771.36 = 247,178.26 : x - Step 2: Convert to fraction form
720,499.60/1,080,771.36 = 247,178.26/x - Step 3: Cross multiply
720,499.60x = 1,080,771.36 × 247,178.26 - Step 4: Simplify right side
720,499.60x = 267,143,184,222.63 - Step 5: Solve for x
x = 267,143,184,222.63/720,499.60 - Step 6: Final answer
x = 370,774.92
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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.