Finding the Fourth Proportional to 3,408,976.40, 4,700,572.79 and 2,786,839.79
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Solution
The fourth proportional to 3,408,976.40, 4,700,572.79 and 2,786,839.79 is: 3,842,720.43
Step by Step Solution
- Step 1: Write the proportion equation
3,408,976.40 : 4,700,572.79 = 2,786,839.79 : x - Step 2: Convert to fraction form
3,408,976.40/4,700,572.79 = 2,786,839.79/x - Step 3: Cross multiply
3,408,976.40x = 4,700,572.79 × 2,786,839.79 - Step 4: Simplify right side
3,408,976.40x = 13,099,743,249,526.25 - Step 5: Solve for x
x = 13,099,743,249,526.25/3,408,976.40 - Step 6: Final answer
x = 3,842,720.43
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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.