Finding the Fourth Proportional to 753,170.78, 1,129,765.30 and 220,702.62
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Solution
The fourth proportional to 753,170.78, 1,129,765.30 and 220,702.62 is: 331,056.61
Step by Step Solution
- Step 1: Write the proportion equation
753,170.78 : 1,129,765.30 = 220,702.62 : x - Step 2: Convert to fraction form
753,170.78/1,129,765.30 = 220,702.62/x - Step 3: Cross multiply
753,170.78x = 1,129,765.30 × 220,702.62 - Step 4: Simplify right side
753,170.78x = 249,342,161,695.09 - Step 5: Solve for x
x = 249,342,161,695.09/753,170.78 - Step 6: Final answer
x = 331,056.61
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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.