Finding the Fourth Proportional to 3,979,356.39, 5,970,296.30 and 1,420,516.49
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Solution
The fourth proportional to 3,979,356.39, 5,970,296.30 and 1,420,516.49 is: 2,131,225.12
Step by Step Solution
- Step 1: Write the proportion equation
3,979,356.39 : 5,970,296.30 = 1,420,516.49 : x - Step 2: Convert to fraction form
3,979,356.39/5,970,296.30 = 1,420,516.49/x - Step 3: Cross multiply
3,979,356.39x = 5,970,296.30 × 1,420,516.49 - Step 4: Simplify right side
3,979,356.39x = 8,480,904,307,381.92 - Step 5: Solve for x
x = 8,480,904,307,381.92/3,979,356.39 - Step 6: Final answer
x = 2,131,225.12
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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.