Finding the Fourth Proportional to 4,221,510.62, 5,825,689.70 and 2,287,771.20
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Solution
The fourth proportional to 4,221,510.62, 5,825,689.70 and 2,287,771.20 is: 3,157,126.99
Step by Step Solution
- Step 1: Write the proportion equation
4,221,510.62 : 5,825,689.70 = 2,287,771.20 : x - Step 2: Convert to fraction form
4,221,510.62/5,825,689.70 = 2,287,771.20/x - Step 3: Cross multiply
4,221,510.62x = 5,825,689.70 × 2,287,771.20 - Step 4: Simplify right side
4,221,510.62x = 13,327,845,115,796.64 - Step 5: Solve for x
x = 13,327,845,115,796.64/4,221,510.62 - Step 6: Final answer
x = 3,157,126.99
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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.