Finding the Fourth Proportional to 747,729.70, 1,031,861.73 and 408,197.95
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Solution
The fourth proportional to 747,729.70, 1,031,861.73 and 408,197.95 is: 563,310.30
Step by Step Solution
- Step 1: Write the proportion equation
747,729.70 : 1,031,861.73 = 408,197.95 : x - Step 2: Convert to fraction form
747,729.70/1,031,861.73 = 408,197.95/x - Step 3: Cross multiply
747,729.70x = 1,031,861.73 × 408,197.95 - Step 4: Simplify right side
747,729.70x = 421,203,841,820.54 - Step 5: Solve for x
x = 421,203,841,820.54/747,729.70 - Step 6: Final answer
x = 563,310.30
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.