Finding the Fourth Proportional to 1,289,629.53, 1,777,813.07 and 901,239.11
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Solution
The fourth proportional to 1,289,629.53, 1,777,813.07 and 901,239.11 is: 1,242,399.17
Step by Step Solution
- Step 1: Write the proportion equation
1,289,629.53 : 1,777,813.07 = 901,239.11 : x - Step 2: Convert to fraction form
1,289,629.53/1,777,813.07 = 901,239.11/x - Step 3: Cross multiply
1,289,629.53x = 1,777,813.07 × 901,239.11 - Step 4: Simplify right side
1,289,629.53x = 1,602,234,662,317.20 - Step 5: Solve for x
x = 1,602,234,662,317.20/1,289,629.53 - Step 6: Final answer
x = 1,242,399.17
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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.