Finding the Fourth Proportional to 1,286,395.99, 1,775,335.49 and 713,620.69
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Solution
The fourth proportional to 1,286,395.99, 1,775,335.49 and 713,620.69 is: 984,857.03
Step by Step Solution
- Step 1: Write the proportion equation
1,286,395.99 : 1,775,335.49 = 713,620.69 : x - Step 2: Convert to fraction form
1,286,395.99/1,775,335.49 = 713,620.69/x - Step 3: Cross multiply
1,286,395.99x = 1,775,335.49 × 713,620.69 - Step 4: Simplify right side
1,286,395.99x = 1,266,916,134,701.00 - Step 5: Solve for x
x = 1,266,916,134,701.00/1,286,395.99 - Step 6: Final answer
x = 984,857.03
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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.