Finding the Fourth Proportional to 2,147,381.15, 2,963,209.84 and 1,264,190.12
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Solution
The fourth proportional to 2,147,381.15, 2,963,209.84 and 1,264,190.12 is: 1,744,478.66
Step by Step Solution
- Step 1: Write the proportion equation
2,147,381.15 : 2,963,209.84 = 1,264,190.12 : x - Step 2: Convert to fraction form
2,147,381.15/2,963,209.84 = 1,264,190.12/x - Step 3: Cross multiply
2,147,381.15x = 2,963,209.84 × 1,264,190.12 - Step 4: Simplify right side
2,147,381.15x = 3,746,060,596,893.83 - Step 5: Solve for x
x = 3,746,060,596,893.83/2,147,381.15 - Step 6: Final answer
x = 1,744,478.66
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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.