Finding the Fourth Proportional to 2,912,622.09, 4,019,422.87 and 1,623,434.79
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Solution
The fourth proportional to 2,912,622.09, 4,019,422.87 and 1,623,434.79 is: 2,240,342.45
Step by Step Solution
- Step 1: Write the proportion equation
2,912,622.09 : 4,019,422.87 = 1,623,434.79 : x - Step 2: Convert to fraction form
2,912,622.09/4,019,422.87 = 1,623,434.79/x - Step 3: Cross multiply
2,912,622.09x = 4,019,422.87 × 1,623,434.79 - Step 4: Simplify right side
2,912,622.09x = 6,525,270,922,879.65 - Step 5: Solve for x
x = 6,525,270,922,879.65/2,912,622.09 - Step 6: Final answer
x = 2,240,342.45
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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.