Finding the Fourth Proportional to 1,319,378.88, 1,979,197.92 and 372,756.96
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Solution
The fourth proportional to 1,319,378.88, 1,979,197.92 and 372,756.96 is: 559,172.06
Step by Step Solution
- Step 1: Write the proportion equation
1,319,378.88 : 1,979,197.92 = 372,756.96 : x - Step 2: Convert to fraction form
1,319,378.88/1,979,197.92 = 372,756.96/x - Step 3: Cross multiply
1,319,378.88x = 1,979,197.92 × 372,756.96 - Step 4: Simplify right side
1,319,378.88x = 737,759,799,897.52 - Step 5: Solve for x
x = 737,759,799,897.52/1,319,378.88 - Step 6: Final answer
x = 559,172.06
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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.