Finding the Fourth Proportional to 2,378,865.11, 3,282,843.74 and 1,291,138.25
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Solution
The fourth proportional to 2,378,865.11, 3,282,843.74 and 1,291,138.25 is: 1,781,776.15
Step by Step Solution
- Step 1: Write the proportion equation
2,378,865.11 : 3,282,843.74 = 1,291,138.25 : x - Step 2: Convert to fraction form
2,378,865.11/3,282,843.74 = 1,291,138.25/x - Step 3: Cross multiply
2,378,865.11x = 3,282,843.74 × 1,291,138.25 - Step 4: Simplify right side
2,378,865.11x = 4,238,605,098,617.15 - Step 5: Solve for x
x = 4,238,605,098,617.15/2,378,865.11 - Step 6: Final answer
x = 1,781,776.15
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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.