Finding the Fourth Proportional to 1,015,879.23, 1,400,867.19 and 709,844.09
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Solution
The fourth proportional to 1,015,879.23, 1,400,867.19 and 709,844.09 is: 978,853.84
Step by Step Solution
- Step 1: Write the proportion equation
1,015,879.23 : 1,400,867.19 = 709,844.09 : x - Step 2: Convert to fraction form
1,015,879.23/1,400,867.19 = 709,844.09/x - Step 3: Cross multiply
1,015,879.23x = 1,400,867.19 × 709,844.09 - Step 4: Simplify right side
1,015,879.23x = 994,397,288,692.07 - Step 5: Solve for x
x = 994,397,288,692.07/1,015,879.23 - Step 6: Final answer
x = 978,853.84
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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.