Finding the Fourth Proportional to 2,486,219.81, 3,430,958.45 and 1,383,632.75
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Solution
The fourth proportional to 2,486,219.81, 3,430,958.45 and 1,383,632.75 is: 1,909,399.35
Step by Step Solution
- Step 1: Write the proportion equation
2,486,219.81 : 3,430,958.45 = 1,383,632.75 : x - Step 2: Convert to fraction form
2,486,219.81/3,430,958.45 = 1,383,632.75/x - Step 3: Cross multiply
2,486,219.81x = 3,430,958.45 × 1,383,632.75 - Step 4: Simplify right side
2,486,219.81x = 4,747,186,476,968.47 - Step 5: Solve for x
x = 4,747,186,476,968.47/2,486,219.81 - Step 6: Final answer
x = 1,909,399.35
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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.