Finding the Fourth Proportional to 4,479,529.38, 6,720,897.87 and 1,919,670.18
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Solution
The fourth proportional to 4,479,529.38, 6,720,897.87 and 1,919,670.18 is: 2,880,192.57
Step by Step Solution
- Step 1: Write the proportion equation
4,479,529.38 : 6,720,897.87 = 1,919,670.18 : x - Step 2: Convert to fraction form
4,479,529.38/6,720,897.87 = 1,919,670.18/x - Step 3: Cross multiply
4,479,529.38x = 6,720,897.87 × 1,919,670.18 - Step 4: Simplify right side
4,479,529.38x = 12,901,907,223,864.52 - Step 5: Solve for x
x = 12,901,907,223,864.52/4,479,529.38 - Step 6: Final answer
x = 2,880,192.57
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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.