Finding the Fourth Proportional to 1,133,505.14, 1,561,576.44 and 788,748.21
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Solution
The fourth proportional to 1,133,505.14, 1,561,576.44 and 788,748.21 is: 1,086,621.12
Step by Step Solution
- Step 1: Write the proportion equation
1,133,505.14 : 1,561,576.44 = 788,748.21 : x - Step 2: Convert to fraction form
1,133,505.14/1,561,576.44 = 788,748.21/x - Step 3: Cross multiply
1,133,505.14x = 1,561,576.44 × 788,748.21 - Step 4: Simplify right side
1,133,505.14x = 1,231,690,621,828.17 - Step 5: Solve for x
x = 1,231,690,621,828.17/1,133,505.14 - Step 6: Final answer
x = 1,086,621.12
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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.