Finding the Fourth Proportional to 1,877,232.21, 2,814,178.34 and 678,888.12
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Solution
The fourth proportional to 1,877,232.21, 2,814,178.34 and 678,888.12 is: 1,017,728.24
Step by Step Solution
- Step 1: Write the proportion equation
1,877,232.21 : 2,814,178.34 = 678,888.12 : x - Step 2: Convert to fraction form
1,877,232.21/2,814,178.34 = 678,888.12/x - Step 3: Cross multiply
1,877,232.21x = 2,814,178.34 × 678,888.12 - Step 4: Simplify right side
1,877,232.21x = 1,910,512,239,192.88 - Step 5: Solve for x
x = 1,910,512,239,192.88/1,877,232.21 - Step 6: Final answer
x = 1,017,728.24
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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.