Finding the Fourth Proportional to 485,704.62, 728,115.87 and 169,989.30
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Solution
The fourth proportional to 485,704.62, 728,115.87 and 169,989.30 is: 254,829.59
Step by Step Solution
- Step 1: Write the proportion equation
485,704.62 : 728,115.87 = 169,989.30 : x - Step 2: Convert to fraction form
485,704.62/728,115.87 = 169,989.30/x - Step 3: Cross multiply
485,704.62x = 728,115.87 × 169,989.30 - Step 4: Simplify right side
485,704.62x = 123,771,907,060.19 - Step 5: Solve for x
x = 123,771,907,060.19/485,704.62 - Step 6: Final answer
x = 254,829.59
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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.