Finding the Fourth Proportional to 456,679.22, 630,201.74 and 252,738.70
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Solution
The fourth proportional to 456,679.22, 630,201.74 and 252,738.70 is: 348,770.78
Step by Step Solution
- Step 1: Write the proportion equation
456,679.22 : 630,201.74 = 252,738.70 : x - Step 2: Convert to fraction form
456,679.22/630,201.74 = 252,738.70/x - Step 3: Cross multiply
456,679.22x = 630,201.74 × 252,738.70 - Step 4: Simplify right side
456,679.22x = 159,276,365,666.14 - Step 5: Solve for x
x = 159,276,365,666.14/456,679.22 - Step 6: Final answer
x = 348,770.78
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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.