Finding the Fourth Proportional to 2,855,008.21, 3,939,548.12 and 1,631,393.05
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Solution
The fourth proportional to 2,855,008.21, 3,939,548.12 and 1,631,393.05 is: 2,251,114.86
Step by Step Solution
- Step 1: Write the proportion equation
2,855,008.21 : 3,939,548.12 = 1,631,393.05 : x - Step 2: Convert to fraction form
2,855,008.21/3,939,548.12 = 1,631,393.05/x - Step 3: Cross multiply
2,855,008.21x = 3,939,548.12 × 1,631,393.05 - Step 4: Simplify right side
2,855,008.21x = 6,426,951,414,951.60 - Step 5: Solve for x
x = 6,426,951,414,951.60/2,855,008.21 - Step 6: Final answer
x = 2,251,114.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.