Finding the Fourth Proportional to 3,690,761.42, 5,536,174.88 and 1,131,988.30
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Solution
The fourth proportional to 3,690,761.42, 5,536,174.88 and 1,131,988.30 is: 1,697,992.49
Step by Step Solution
- Step 1: Write the proportion equation
3,690,761.42 : 5,536,174.88 = 1,131,988.30 : x - Step 2: Convert to fraction form
3,690,761.42/5,536,174.88 = 1,131,988.30/x - Step 3: Cross multiply
3,690,761.42x = 5,536,174.88 × 1,131,988.30 - Step 4: Simplify right side
3,690,761.42x = 6,266,885,190,913.90 - Step 5: Solve for x
x = 6,266,885,190,913.90/3,690,761.42 - Step 6: Final answer
x = 1,697,992.49
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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.