Finding the Fourth Proportional to 3,216,729.16, 4,821,685.26 and 1,509,430.60
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Solution
The fourth proportional to 3,216,729.16, 4,821,685.26 and 1,509,430.60 is: 2,262,546.49
Step by Step Solution
- Step 1: Write the proportion equation
3,216,729.16 : 4,821,685.26 = 1,509,430.60 : x - Step 2: Convert to fraction form
3,216,729.16/4,821,685.26 = 1,509,430.60/x - Step 3: Cross multiply
3,216,729.16x = 4,821,685.26 × 1,509,430.60 - Step 4: Simplify right side
3,216,729.16x = 7,277,999,275,012.96 - Step 5: Solve for x
x = 7,277,999,275,012.96/3,216,729.16 - Step 6: Final answer
x = 2,262,546.49
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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.