Finding the Fourth Proportional to 1,065,918.93, 1,471,118.15 and 678,610.62
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Solution
The fourth proportional to 1,065,918.93, 1,471,118.15 and 678,610.62 is: 936,578.17
Step by Step Solution
- Step 1: Write the proportion equation
1,065,918.93 : 1,471,118.15 = 678,610.62 : x - Step 2: Convert to fraction form
1,065,918.93/1,471,118.15 = 678,610.62/x - Step 3: Cross multiply
1,065,918.93x = 1,471,118.15 × 678,610.62 - Step 4: Simplify right side
1,065,918.93x = 998,316,396,471.70 - Step 5: Solve for x
x = 998,316,396,471.70/1,065,918.93 - Step 6: Final answer
x = 936,578.17
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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.