Finding the Fourth Proportional to 3,209,653.74, 4,426,739.49 and 2,821,639.53
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Solution
The fourth proportional to 3,209,653.74, 4,426,739.49 and 2,821,639.53 is: 3,891,592.10
Step by Step Solution
- Step 1: Write the proportion equation
3,209,653.74 : 4,426,739.49 = 2,821,639.53 : x - Step 2: Convert to fraction form
3,209,653.74/4,426,739.49 = 2,821,639.53/x - Step 3: Cross multiply
3,209,653.74x = 4,426,739.49 × 2,821,639.53 - Step 4: Simplify right side
3,209,653.74x = 12,490,663,133,996.04 - Step 5: Solve for x
x = 12,490,663,133,996.04/3,209,653.74 - Step 6: Final answer
x = 3,891,592.10
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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.