Finding the Fourth Proportional to 2,121,424.48, 3,178,423.68 and 1,445,311
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Solution
The fourth proportional to 2,121,424.48, 3,178,423.68 and 1,445,311 is: 2,165,436.83
Step by Step Solution
- Step 1: Write the proportion equation
2,121,424.48 : 3,178,423.68 = 1,445,311 : x - Step 2: Convert to fraction form
2,121,424.48/3,178,423.68 = 1,445,311/x - Step 3: Cross multiply
2,121,424.48x = 3,178,423.68 × 1,445,311 - Step 4: Simplify right side
2,121,424.48x = 4,593,810,707,364.48 - Step 5: Solve for x
x = 4,593,810,707,364.48/2,121,424.48 - Step 6: Final answer
x = 2,165,436.83
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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.