Finding the Fourth Proportional to 3,440,557.52, 4,748,589.96 and 1,990,051.28
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Solution
The fourth proportional to 3,440,557.52, 4,748,589.96 and 1,990,051.28 is: 2,746,629.72
Step by Step Solution
- Step 1: Write the proportion equation
3,440,557.52 : 4,748,589.96 = 1,990,051.28 : x - Step 2: Convert to fraction form
3,440,557.52/4,748,589.96 = 1,990,051.28/x - Step 3: Cross multiply
3,440,557.52x = 4,748,589.96 × 1,990,051.28 - Step 4: Simplify right side
3,440,557.52x = 9,449,937,528,093.15 - Step 5: Solve for x
x = 9,449,937,528,093.15/3,440,557.52 - Step 6: Final answer
x = 2,746,629.72
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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.