Finding the Fourth Proportional to 753,175.72, 1,129,919.10 and 220,714.12
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Solution
The fourth proportional to 753,175.72, 1,129,919.10 and 220,714.12 is: 331,116.75
Step by Step Solution
- Step 1: Write the proportion equation
753,175.72 : 1,129,919.10 = 220,714.12 : x - Step 2: Convert to fraction form
753,175.72/1,129,919.10 = 220,714.12/x - Step 3: Cross multiply
753,175.72x = 1,129,919.10 × 220,714.12 - Step 4: Simplify right side
753,175.72x = 249,389,099,827.69 - Step 5: Solve for x
x = 249,389,099,827.69/753,175.72 - Step 6: Final answer
x = 331,116.75
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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.