Finding the Fourth Proportional to 1,286,317.22, 1,775,056.97 and 713,345.09
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Solution
The fourth proportional to 1,286,317.22, 1,775,056.97 and 713,345.09 is: 984,382.51
Step by Step Solution
- Step 1: Write the proportion equation
1,286,317.22 : 1,775,056.97 = 713,345.09 : x - Step 2: Convert to fraction form
1,286,317.22/1,775,056.97 = 713,345.09/x - Step 3: Cross multiply
1,286,317.22x = 1,775,056.97 × 713,345.09 - Step 4: Simplify right side
1,286,317.22x = 1,266,228,170,453.05 - Step 5: Solve for x
x = 1,266,228,170,453.05/1,286,317.22 - Step 6: Final answer
x = 984,382.51
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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.