Finding the Fourth Proportional to 4,821,378.09, 6,653,062.07 and 2,860,918.28
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Solution
The fourth proportional to 4,821,378.09, 6,653,062.07 and 2,860,918.28 is: 3,947,806.32
Step by Step Solution
- Step 1: Write the proportion equation
4,821,378.09 : 6,653,062.07 = 2,860,918.28 : x - Step 2: Convert to fraction form
4,821,378.09/6,653,062.07 = 2,860,918.28/x - Step 3: Cross multiply
4,821,378.09x = 6,653,062.07 × 2,860,918.28 - Step 4: Simplify right side
4,821,378.09x = 19,033,866,882,145.16 - Step 5: Solve for x
x = 19,033,866,882,145.16/4,821,378.09 - Step 6: Final answer
x = 3,947,806.32
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1.5x scale
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.