Finding the Fourth Proportional to 1,286,847.18, 1,775,851.20 and 713,887.36
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Solution
The fourth proportional to 1,286,847.18, 1,775,851.20 and 713,887.36 is: 985,165.71
Step by Step Solution
- Step 1: Write the proportion equation
1,286,847.18 : 1,775,851.20 = 713,887.36 : x - Step 2: Convert to fraction form
1,286,847.18/1,775,851.20 = 713,887.36/x - Step 3: Cross multiply
1,286,847.18x = 1,775,851.20 × 713,887.36 - Step 4: Simplify right side
1,286,847.18x = 1,267,757,720,481.20 - Step 5: Solve for x
x = 1,267,757,720,481.20/1,286,847.18 - Step 6: Final answer
x = 985,165.71
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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.