Finding the Fourth Proportional to 1,382,116.40, 2,073,279.56 and 471,015.70
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Solution
The fourth proportional to 1,382,116.40, 2,073,279.56 and 471,015.70 is: 706,559.32
Step by Step Solution
- Step 1: Write the proportion equation
1,382,116.40 : 2,073,279.56 = 471,015.70 : x - Step 2: Convert to fraction form
1,382,116.40/2,073,279.56 = 471,015.70/x - Step 3: Cross multiply
1,382,116.40x = 2,073,279.56 × 471,015.70 - Step 4: Simplify right side
1,382,116.40x = 976,547,223,249.09 - Step 5: Solve for x
x = 976,547,223,249.09/1,382,116.40 - Step 6: Final answer
x = 706,559.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.