Finding the Fourth Proportional to 3,209,658.62, 4,426,746.20 and 2,821,644.42
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Solution
The fourth proportional to 3,209,658.62, 4,426,746.20 and 2,821,644.42 is: 3,891,598.82
Step by Step Solution
- Step 1: Write the proportion equation
3,209,658.62 : 4,426,746.20 = 2,821,644.42 : x - Step 2: Convert to fraction form
3,209,658.62/4,426,746.20 = 2,821,644.42/x - Step 3: Cross multiply
3,209,658.62x = 4,426,746.20 × 2,821,644.42 - Step 4: Simplify right side
3,209,658.62x = 12,490,703,713,986.21 - Step 5: Solve for x
x = 12,490,703,713,986.21/3,209,658.62 - Step 6: Final answer
x = 3,891,598.82
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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.