Finding the Fourth Proportional to 2,486,405.68, 3,431,204.08 and 1,383,829.63
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Solution
The fourth proportional to 2,486,405.68, 3,431,204.08 and 1,383,829.63 is: 1,909,664.98
Step by Step Solution
- Step 1: Write the proportion equation
2,486,405.68 : 3,431,204.08 = 1,383,829.63 : x - Step 2: Convert to fraction form
2,486,405.68/3,431,204.08 = 1,383,829.63/x - Step 3: Cross multiply
2,486,405.68x = 3,431,204.08 × 1,383,829.63 - Step 4: Simplify right side
2,486,405.68x = 4,748,201,860,443.31 - Step 5: Solve for x
x = 4,748,201,860,443.31/2,486,405.68 - Step 6: Final answer
x = 1,909,664.98
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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.