Finding the Fourth Proportional to 1,319,704.53, 1,979,591.19 and 421,145.06
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Solution
The fourth proportional to 1,319,704.53, 1,979,591.19 and 421,145.06 is: 631,728.56
Step by Step Solution
- Step 1: Write the proportion equation
1,319,704.53 : 1,979,591.19 = 421,145.06 : x - Step 2: Convert to fraction form
1,319,704.53/1,979,591.19 = 421,145.06/x - Step 3: Cross multiply
1,319,704.53x = 1,979,591.19 × 421,145.06 - Step 4: Simplify right side
1,319,704.53x = 833,695,040,590.07 - Step 5: Solve for x
x = 833,695,040,590.07/1,319,704.53 - Step 6: Final answer
x = 631,728.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.