Finding the Fourth Proportional to 667,343.20, 1,001,014.80 and 352,415.20
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Solution
The fourth proportional to 667,343.20, 1,001,014.80 and 352,415.20 is: 528,622.80
Step by Step Solution
- Step 1: Write the proportion equation
667,343.20 : 1,001,014.80 = 352,415.20 : x - Step 2: Convert to fraction form
667,343.20/1,001,014.80 = 352,415.20/x - Step 3: Cross multiply
667,343.20x = 1,001,014.80 × 352,415.20 - Step 4: Simplify right side
667,343.20x = 352,772,830,944.96 - Step 5: Solve for x
x = 352,772,830,944.96/667,343.20 - Step 6: Final answer
x = 528,622.80
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Similar ratio
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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.