Finding the Fourth Proportional to 2,131,008.21, 3,197,773.40 and 784,116.63
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Solution
The fourth proportional to 2,131,008.21, 3,197,773.40 and 784,116.63 is: 1,176,638.97
Step by Step Solution
- Step 1: Write the proportion equation
2,131,008.21 : 3,197,773.40 = 784,116.63 : x - Step 2: Convert to fraction form
2,131,008.21/3,197,773.40 = 784,116.63/x - Step 3: Cross multiply
2,131,008.21x = 3,197,773.40 × 784,116.63 - Step 4: Simplify right side
2,131,008.21x = 2,507,427,297,991.06 - Step 5: Solve for x
x = 2,507,427,297,991.06/2,131,008.21 - Step 6: Final answer
x = 1,176,638.97
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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.