Finding the Fourth Proportional to 1,376,009.02, 1,898,939.64 and 764,171.44
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Solution
The fourth proportional to 1,376,009.02, 1,898,939.64 and 764,171.44 is: 1,054,582.80
Step by Step Solution
- Step 1: Write the proportion equation
1,376,009.02 : 1,898,939.64 = 764,171.44 : x - Step 2: Convert to fraction form
1,376,009.02/1,898,939.64 = 764,171.44/x - Step 3: Cross multiply
1,376,009.02x = 1,898,939.64 × 764,171.44 - Step 4: Simplify right side
1,376,009.02x = 1,451,115,439,171.88 - Step 5: Solve for x
x = 1,451,115,439,171.88/1,376,009.02 - Step 6: Final answer
x = 1,054,582.80
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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.